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 BlindSophist
you can call me BS
 
Registered: 07/11/06
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Loc: SF Bay Area
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 I love conceptual physics  2
#13623176 - 12/12/10 09:22 PM (2 years, 5 months ago) |
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Conceptual Physics is a course which gives a rather comprehensive overview of classical and quantum physics while avoiding the complex mathematical extrapolations inherent to the subject, often described as "fucking crazy." This course is AWESOME. For example, the only reason a bullet does not exhibit wave-like movement is that it is so much larger than its wave function. This is why subatomic particles such as photons are subject to wave-like behavior in their movement whereas larger objects are not.
Also, it actually IS possible to travel faster than light, but no one would see it. Space would contract for the traveler while time would dilate for the observer. This phenomenon makes possible such great sci-fi yarns as The Forever War.
Revelatory moments like that shake the foundations of my chosen major.
I'm really going to miss conceptual physics.
Edited by Tchan909 (12/13/10 01:09 AM)
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 Fungal-one
Kneegrow
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I would fuckin nut taking such a class.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one] 1
#13623213 - 12/12/10 09:28 PM (2 years, 5 months ago) |
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Yeah. If you're ever at a loss for a class to add to your schedule, be sure it's this one. It's very easy to understand without any mathematical or scientific background, the workload is light, brisk, and refreshing, and it's trippy as a motherFUCKER. Informative, too - ie, quantum mechanics =/= magic.
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The Vapor
Lost In A Tea Daze
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Re: I love conceptual physics [Re: Fungal-one] 1
#13623219 - 12/12/10 09:30 PM (2 years, 5 months ago) |
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I was never very good at Physics in highschool, so this sounds like the course for me. I really enjoy all the concepts but the work is a pain in the ass.
I didn't even know schools offered courses like this, so thanks for letting me know.
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Fungal-one
Kneegrow
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There's very little chance of me going back to school since I have no money and Im already 36. I am learning chemistry on my own, though. I find that chemistry is really just advanced physics with some new words to learn so certain concepts can be discussed/understood. Certain forces act upon matter and when shit gets small those forces are sometimes ones we arent familiar with. I just love that type shit anyway.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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The Vapor
Lost In A Tea Daze
Registered: 03/22/10
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Re: I love conceptual physics [Re: Fungal-one]
#13623242 - 12/12/10 09:34 PM (2 years, 5 months ago) |
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What kind of chemistry are you doing Fungal One?
I am pretty interested in Organic Chemistry and was thinking about taking some courses.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: The Vapor]
#13623244 - 12/12/10 09:34 PM (2 years, 5 months ago) |
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I do think courses like this are a new concept. Physics professors are beginning to understand that they should develop courses which aim to explain physics to people who are not majoring in physics, since the overarching ideas are not nearly as complex as their practical and experimental applications. And I guess this barn-burner of a class is the result.
The prof was awesome too. Physicists get so enthusiastic about their field you can't help but get carried away with them. I just about died with joy when he described Einstein's theory of special relativity as a "tour de force." I just had this image of him munching popcorn as he pored over the implications.
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The Vapor
Lost In A Tea Daze
Registered: 03/22/10
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Yeah, Teachers who actually love to teach are great. Then there are teachers who just bitch about the students, and all the work they have to do.
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Fungal-one
Kneegrow
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Re: I love conceptual physics [Re: The Vapor]
#13623260 - 12/12/10 09:37 PM (2 years, 5 months ago) |
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Quote:
The Vapor said:
What kind of chemistry are you doing Fungal One?
I am pretty interested in Organic Chemistry and was thinking about taking some courses.
Im still on basic chemistry but organic is definitely my goal. How else will I know wtf is going on when I extract every chemical from lion's mane fungus, inject paralyzed mice and cure them?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Caine
On the Wings of Maybe
Registered: 01/25/10
Posts: 3,848
Loc: NE
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Re: I love conceptual physics [Re: The Vapor]
#13623276 - 12/12/10 09:39 PM (2 years, 5 months ago) |
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Most mind blowing thing I learned in that class is that if you can't see something there is only the probability that it exists. Sooooo cool 
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: The Vapor]
#13623286 - 12/12/10 09:41 PM (2 years, 5 months ago) |
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My General Chemistry teacher is kind of like that... she is very not good at describing the concepts in lecture, and when asked for clarification tends to berate you for it. In a review lecture the other day she was trying to gloss over how molecular orbital diagrams are constructed, and when I asked her to elaborate, she said I should have read it in the goddamn chapter. I pointed out that this was a REVIEW LECTURE, and it was an awkward moment. I had to figure it out for myself at home. I would be lost at sea if I hadn't spent so many hours studying at home this term. I guess chemistry concepts have to be like that if you plan to apply them practically, though.
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Fungal-one
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Re: I love conceptual physics [Re: Caine]
#13623288 - 12/12/10 09:41 PM (2 years, 5 months ago) |
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Quote:
Caine said:
Most mind blowing thing I learned in that class is that if you can't see something there is only the probability that it exists. Sooooo cool
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Fungal-one
Kneegrow
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Quote:
Tchan909 said:
My General Chemistry teacher is kind of like that... she is very not good at describing the concepts in lecture, and when asked for clarification tends to berate you for it. In a review lecture the other day she was trying to gloss over how molecular orbital diagrams are constructed, and when I asked her to elaborate, she said I should have read it in the goddamn chapter. I pointed out that this was a REVIEW LECTURE, and it was an awkward moment. I had to figure it out for myself at home. I would be lost at sea if I hadn't spent so many hours studying at home. I guess chemistry concepts have to be like that if you plan to apply them practically, though.
I would say for sure that with something like chemistry understanding is the only way to be good at it. Memorizing shit will get you nowhere. You are better off having to fight through it but it seems like she could be a bit more helpful, tell a fucking parable or some shit lol
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623319 - 12/12/10 09:49 PM (2 years, 5 months ago) |
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This is why quantum theory deals in statistical probability rather than singular predictions - you can't really see an electron or a photon flying through space, and even though it can be detected when a particle hits a surface, you can't predict the exact path they take through space except as a wave of probability.
Quantum mechanics apply to larger objects, like bullets, only academically. Since the bullet is so much larger than its wave function, it becomes negligibly important in describing its movement, and classical physics takes over with a non-statistical description of its trajectory.
Fucking mind-blowing shit.
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Fungal-one
Kneegrow
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Electrons don't blow my mind. Photons do. Everywhere at once? WTF?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623341 - 12/12/10 09:55 PM (2 years, 5 months ago) |
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Quote:
Fungal-one said:
I would say for sure that with something like chemistry understanding is the only way to be good at it. Memorizing shit will get you nowhere. You are better off having to fight through it but it seems like she could be a bit more helpful, tell a fucking parable or some shit lol
Very true. If I tried to learn chemistry through rote memorization I'm pretty sure my brain would pop inside my skull.
What's really neat is that conceptual physics and gen chem have actually fed into each other very elegantly in helping me understand the behavior of atoms. There were just so many moments where chemistry made more sense all of a sudden because of this thing we're learning in conceptual physics, and vice versa. Disciplinary overlap FTW.
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Fungal-one
Kneegrow
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Quote:
Tchan909 said:
Quote:
Fungal-one said:
I would say for sure that with something like chemistry understanding is the only way to be good at it. Memorizing shit will get you nowhere. You are better off having to fight through it but it seems like she could be a bit more helpful, tell a fucking parable or some shit lol
Very true. If I tried to learn chemistry through rote memorization I'm pretty sure my brain would pop inside my skull.
What's really neat is that conceptual physics and gen chem have actually fed into each other very elegantly in helping me understand the behavior of atoms. There were just so many moments where chemistry made more sense all of a sudden because of this thing we're learning in conceptual physics, and vice versa. Disciplinary overlap FTW.
I can see how they would definitely feed into each other.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623359 - 12/12/10 09:58 PM (2 years, 5 months ago) |
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Quote:
Fungal-one said:
Electrons don't blow my mind. Photons do. Everywhere at once? WTF?
Yes... light travels at the speed of light no matter what. So for example, if you're traveling away from a light source, the photons will still travel at the speed of light to reach you. You'd assume the speed of light traveling towards and past you from a given source would decrease if you're moving away from it, but it simply does not. Time and space themselves will actually fucking bend and warp so that the speed of light is ALWAYS 3x10^8 m/s, no matter what.
Why? It's a fucking mystery. 
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DieCommie
El Guapo
Registered: 12/11/03
Posts: 25,374
Loc: Street of Dreams
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Conceptual physics is fun. I loved the class when I took it, and I like helping students with it because it is fun to talk about and misconceptions are easier to flush out.
Quote:
Tchan909 said:
Also, it actually IS possible to travel faster than light, but no one would see it. Space would contract for the traveler while time would contract for the observer.
I dont think that is right... Did your teacher tell you that?
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Fungal-one
Kneegrow
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What used to really confuse me was why formulae of abstract things like relativity always had so and so times the speed of light. I saw the speed of light as some arbitrary value that just sounded cool, therefore scientists multiplied shit by it. One day it dawned on me that the speed of light is not at all arbitrary but rather an actual value that we might consider the uppermost know speed of every goddamn thing. Kinda like 0 kelvin is the lowermost. I cant explain it but I see why the value is used now even if I cant fully get my head around it.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: DieCommie]
#13623403 - 12/12/10 10:09 PM (2 years, 5 months ago) |
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No, that's just my understanding of the concept. I could have interpreted it wrong.
Basically, a given destination is 25 light-years away from you. If you approach light speed going towards that destination, you will never actually reach light speed, but space will contract so that it might actually take less than 25 years for YOU to reach the destination. To stationary observers, however, it would never take you less than 25 years to reach that destination.
So, faster-than-light speed is possible in a sort of meta-analysis of the experiences of the traveler and the observer, but to neither of those parties will the speed of light have ever been broken.
Edited by Tchan909 (12/13/10 01:15 AM)
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Fungal-one
Kneegrow
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Will a 383 stroker get me faster than the speed of light?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623422 - 12/12/10 10:14 PM (2 years, 5 months ago) |
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Quote:
Fungal-one said:
What used to really confuse me was why formulae of abstract things like relativity always had so and so times the speed of light. I saw the speed of light as some arbitrary value that just sounded cool, therefore scientists multiplied shit by it. One day it dawned on me that the speed of light is not at all arbitrary but rather an actual value that we might consider the uppermost know speed of every goddamn thing. Kinda like 0 kelvin is the lowermost. I cant explain it but I see why the value is used now even if I cant fully get my head around it.
In chemistry, I had pretty much understood ideas of molarity as being totally abstract, but then one day in the lab I was able to predict the change in mass of 8 grams of sodium bicarbonate degraded to sodium carbonate with a 3-milligram margin of error. My mind was fucking blown when I realized this mathematical machine of conversion factors across molar masses enabled me to near-perfectly predict changes in molecular structure, and that none of these concepts were actually abstract in the slightest.
Some other folks in the class had no error at all, and I'm guessing it's because they had better lab technique than I did.
Science is so fucking empowering when you bridge that yawning chasm between seemingly-abstract theoretical concepts and practical application... and realize the chasm was never there. It's a rush, I tell you. Vertigo.
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d33p
Welcome to Violence
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Quote:
Tchan909 said:
Also, it actually IS possible to travel faster than light, but no one would see it. Space would contract for the traveler while time would contract for the observer. This phenomenon makes possible such great sci-fi yarns as The Forever War.
That's wrong.
You're thinking of an illusion where it appears as if something has traveled at a speed faster than light due to space/time being warped by gravity. The distinction that it is merely an illusion is very important.
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I'm a nihilist. Lets be friends.
bang bang
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Fungal-one
Kneegrow
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Quote:
Tchan909 said:
Quote:
Fungal-one said:
What used to really confuse me was why formulae of abstract things like relativity always had so and so times the speed of light. I saw the speed of light as some arbitrary value that just sounded cool, therefore scientists multiplied shit by it. One day it dawned on me that the speed of light is not at all arbitrary but rather an actual value that we might consider the uppermost know speed of every goddamn thing. Kinda like 0 kelvin is the lowermost. I cant explain it but I see why the value is used now even if I cant fully get my head around it.
In chemistry, I had pretty much understood ideas of molarity as being totally abstract, but then one day in the lab I was able to predict the change in mass of 8 grams of sodium bicarbonate degraded to sodium carbonate with a 3-milligram margin of error. My mind was fucking blown when I realized this mathematical machine of conversion factors across molar masses enabled me to near-perfectly predict changes in molecular structure, and that none of these concepts were actually abstract in the slightest.
Science is so fucking empowering when you bridge that yawning chasm between seemingly-abstract theoretical concepts and practical application... and realize the chasm was never there. It's a rush, I tell you. Vertigo.
Its really the math that is empowering. I never cared about math in school but in the shop being a cnc programmer in the days before autocad I quickly became friends with trig. It blew my mind at first that I could predict positions and describe things like spherical surfaces to a computer through math.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Re: I love conceptual physics [Re: d33p]
#13623450 - 12/12/10 10:20 PM (2 years, 5 months ago) |
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Quote:
d33p said:
You're thinking of an illusion where it appears as if something has traveled at a speed faster than light due to space/time being warped by gravity. The distinction that it is merely an illusion is very important.
I understand what you're getting at, but I think that to meaningfully discuss this phenomenon in non-scientific terms we would have to account for personal differences in ontology. Why must we understand it as an illusion? For both the traveler and the observer, an illusion has occurred, but the illusions were different, and this difference has real-life consequences. That wouldn't fit my personal definition of an illusion. Am I misunderstanding something?
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Fungal-one
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Okay, illusion I get, something an observer observes which fails at being real. Ontology on the other hand is a big wtf.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623490 - 12/12/10 10:30 PM (2 years, 5 months ago) |
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So then which is actually real - the experience of the relativistic traveler, who has reached his destination 25 light-years away in less than 25 years because space warped to prevent him from ever reaching light speed, or the experience of the observer, who observes a returning traveler who is much younger than he should be? That's where ontology comes in and where I'm not so sure spacetime dilation and contraction could be called an illusion, but I could still see why it might be called that.
I dunno man, I might sound like an idiot droning on about this with a layman's understanding, but I would really love to have any gaps in my understanding corrected. 
Edited by Tchan909 (12/13/10 01:51 AM)
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Fungal-one
Kneegrow
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Quote:
Tchan909 said:
I dunno man, I might sound like an idiot droning on about this with a layman's understanding, but I would really love to have any gaps in my understanding be corrected.
Makes for the best talk over 8 or 13 beers and a big joint.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623501 - 12/12/10 10:33 PM (2 years, 5 months ago) |
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This is what happens when I get started on the beer after I finish my homework.
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Fungal-one
Kneegrow
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Quote:
Tchan909 said:
This is what happens when I get started on the beer after I finish my homework.
I would happily drink beer with you, sir.
Infact, that goes for most of you.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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d33p
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Quote:
Tchan909 said:
Quote:
d33p said:
You're thinking of an illusion where it appears as if something has traveled at a speed faster than light due to space/time being warped by gravity. The distinction that it is merely an illusion is very important.
I understand what you're getting at, but I think that to meaningfully discuss this phenomenon in non-scientific terms we would have to account for personal differences in ontology. Why must we understand it as an illusion? For both the traveler and the observer, an illusion has occurred, but the illusions were different, and this difference has real-life consequences. That wouldn't fit my personal definition of an illusion. Am I misunderstanding something?
Simply put, it would take an infinite amount of energy for a particle with mass to reach the speed of light. It is not possible. The observation demonstrates an illusion. The real world result is what it is.
btw, free will is an illusion
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I'm a nihilist. Lets be friends.
bang bang
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Fungal-one
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Re: I love conceptual physics [Re: d33p]
#13623529 - 12/12/10 10:39 PM (2 years, 5 months ago) |
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Quote:
d33p said:
Quote:
Tchan909 said:
Quote:
d33p said:
You're thinking of an illusion where it appears as if something has traveled at a speed faster than light due to space/time being warped by gravity. The distinction that it is merely an illusion is very important.
I understand what you're getting at, but I think that to meaningfully discuss this phenomenon in non-scientific terms we would have to account for personal differences in ontology. Why must we understand it as an illusion? For both the traveler and the observer, an illusion has occurred, but the illusions were different, and this difference has real-life consequences. That wouldn't fit my personal definition of an illusion. Am I misunderstanding something?
Simply put, it would take an infinite amount of energy for a particle with mass to reach the speed of light. It is not possible. The observation demonstrates an illusion. The real world result is what it is.
btw, free will is an illusion
This is pretty much what dawned on me about the speed of light. It is the uppermost level of possible energy that can be exerted.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
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Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: d33p]
#13623571 - 12/12/10 10:49 PM (2 years, 5 months ago) |
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Quote:
d33p said:
Simply put, it would take an infinite amount of energy for a particle with mass to reach the speed of light. It is not possible. The observation demonstrates an illusion. The real world result is what it is.
btw, free will is an illusion
BUT the traveler could conceivably reach a destination 25 light-years away from himself in less than 25 years. Adding energy to his speed would not cause his speedometer to give higher readings but would rather cause space to contract even more. And his odometer would read a distance of fewer than 25 light-years when he reached his destination. Again, please clarify if I'm mistaken on this point.
So then how is it an illusion that he reached a destination 25 light-years away in less than 25 subjective years? That's reality, every bit as much as is the outside observation that he never traveled faster than light speed. Even though to him, he did, but didn't.
I don't see an illusion here, I just see huge amounts of trippiness!
Free will is trippy as FUCK bro!
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DieCommie
El Guapo
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I think what you said in your first response to me was right. With time dilation aging you slower you could traverse the entire galaxy in your lifetime. But neither you nor an earthly observer would see anybody going faster than light. Everybody still goes less than the speed of light.
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Fungal-one
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What if energy is borrowed from space-time and this is what causes the contraction?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: DieCommie]
#13623604 - 12/12/10 10:55 PM (2 years, 5 months ago) |
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Yeah but I'm just so horribly tripped up on the idea that you can but can't at the same time.
You reach your destination 25 light years away in less than 25 years. Space and time will contort to make sure you never actually reach the speed of light, but depending on where you call the illusion, one could say you actually did pass the speed of light, and spacetime contortions only make it seem like you didn't.
I'm gonna fry so goddamn hard this winter break and it's going to be the most glorious intergalactic supradimensional trip ever.
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Envix
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Re: I love conceptual physics [Re: Fungal-one]
#13623623 - 12/12/10 10:59 PM (2 years, 5 months ago) |
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damn the only physics course @ my school is called "Physics"
i want to take some physics for next semester. i've never take a physics course before, but have always had a deep interest in it. readin' a bunch of books n thangs on it, doin' internet thangs lookin up neat physics stuff and concepts n thangs''
i also don't have a very well-established foundation in math skills... would anyone happen to be suggesting a math course that would be beneficial to learning physics thangs?
ive heard of a lot of really smart guys really involved in the math/science worlds having dificulties in physics course .
im wondering if jumping into physics would be a waste of time with my current limited-knowledge of mathematical/scientific learnings
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Fungal-one
Kneegrow
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But speed is something only relevant to the traveler. If space indeed contracts to make the traveler appear to go faster than the speed of light then it is not speed that changed but rather the dimensions of the trip.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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bryguy27007
Cosmonaut
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Re: I love conceptual physics [Re: The Vapor]
#13623632 - 12/12/10 11:01 PM (2 years, 5 months ago) |
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Quote:
The Vapor said:
I was never very good at Physics in highschool, so this sounds like the course for me. I really enjoy all the concepts but the work is a pain in the ass.
I didn't even know schools offered courses like this, so thanks for letting me know.
Same here.
I used to want to major in astrophyics and philosophy but once I figured out how much work an astrophysics major is I dropped out.
I still think the concepts are very cool though, that's all I've ever cared about, I was never cut out for the work.
I don't think my school offers this course though.
I approve of this thread.
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BlindSophist
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Re: I love conceptual physics [Re: Fungal-one]
#13623646 - 12/12/10 11:04 PM (2 years, 5 months ago) |
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The traveler will never appear to go faster than the speed of light, either to the observer or the traveler.
This is because space contracts for the traveler - his destination will actually move closer to him as he pours more and more energy into acceleration that will never reach light speed.
The observer will simply see a spacecraft getting progressively closer to the speed of light, but never actually reaching it.
I remain hung up on the fact that the traveler will launch a rocket, with the intent of reaching a body which is 25 light years away. He will reach it in less than 25 years. In that sense he definitely traveled faster than light, without ever breaking the laws of physics. Or traveling faster than light.
This shit is so fucking WIDE-OPEN.
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Fungal-one
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If space contracts then it is not 25 light years away, though. Right?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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d33p
Welcome to Violence
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Quote:
Tchan909 said:
Quote:
d33p said:
Simply put, it would take an infinite amount of energy for a particle with mass to reach the speed of light. It is not possible. The observation demonstrates an illusion. The real world result is what it is.
btw, free will is an illusion
BUT the traveler could conceivably reach a destination 25 light-years away from himself in less than 25 years. Adding energy to his speed would not cause his speedometer to give higher readings but would rather cause space to contract even more. And his odometer would read a distance of fewer than 25 light-years when he reached his destination. Again, please clarify if I'm mistaken on this point.
So then how is it an illusion that he reached a destination 25 light-years away in less than 25 subjective years? That's reality, every bit as much as is the outside observation that he never traveled faster than light speed.
I don't see an illusion here, I just see huge amounts of trippiness!
Free will is trippy as FUCK bro!
You're determining the speed after the action using the measurement of undistorted space/time. The particle did not travel as such so it's silly to calculate speed like that. Also, to an outside observer it would seems as though the particle is traveling faster than light. That is an illusion. If the particle looks back upon now undistorted space/time it would seem as though it traveled faster than light. That is also an illusion. The necessity of an infinite an amount of energy for a particle to reach light speed is a function of the math of the lorentz transformation. Basically, any added energy will go toward mass and the particle can never reach light speed.
An illusion can result in a "real" outcome.
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I'm a nihilist. Lets be friends.
bang bang
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g00ru
the kava crow
Registered: 08/09/07
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Spacetime can contract so that you end up getting somewhere "faster" than the speed of light. Warp drive!!!!
But your actual velocity on your (relative) path through spacetime will never have a greater velocity than the speed of light. That's my understanding at least.
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BlindSophist
you can call me BS
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Re: I love conceptual physics [Re: d33p]
#13623667 - 12/12/10 11:08 PM (2 years, 5 months ago) |
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Quote:
d33p said:
. . .
An illusion can result in a "real" outcome.
I just came.
Thank you.
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d33p
Welcome to Violence
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Re: I love conceptual physics [Re: Envix]
#13623686 - 12/12/10 11:15 PM (2 years, 5 months ago) |
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Quote:
Envix said:
damn the only physics course @ my school is called "Physics"
i want to take some physics for next semester. i've never take a physics course before, but have always had a deep interest in it. readin' a bunch of books n thangs on it, doin' internet thangs lookin up neat physics stuff and concepts n thangs''
i also don't have a very well-established foundation in math skills... would anyone happen to be suggesting a math course that would be beneficial to learning physics thangs?
ive heard of a lot of really smart guys really involved in the math/science worlds having dificulties in physics course .
im wondering if jumping into physics would be a waste of time with my current limited-knowledge of mathematical/scientific learnings
Based on what you've said, I doubt you would ever gain much from studying the math of theoretical physics. However, you should check out the physics courses MIT has online for free. Lectures, notes, ideas for texts to study, etc ALL FREE
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I'm a nihilist. Lets be friends.
bang bang
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: d33p]
#13623712 - 12/12/10 11:20 PM (2 years, 5 months ago) |
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Guys, the universe is better than us.
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Fungal-one
Kneegrow
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We are the universe. You need more Sagan in your life.
I think I told you guys that when I was in ICU apparently during one of my more animated times of being awake (dont remember it) I told my mom that they had Carl Sagan's body froze in that hospital and they were gonna let me smoke a joint with the body.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
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Re: I love conceptual physics [Re: Fungal-one]
#13623733 - 12/12/10 11:25 PM (2 years, 5 months ago) |
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You might have told us guys about that before but that is news to me. Fucking sick.
I know we are the universe, but... the universe remains so much bigger than us... 
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Fungal-one
Kneegrow
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There was a cool thread a while back with a Sagan video. Cool shit. Knowing that we are made from the shit from long gone stars is pretty dank.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Re: I love conceptual physics [Re: Fungal-one]
#13623780 - 12/12/10 11:32 PM (2 years, 5 months ago) |
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g00ru
the kava crow
Registered: 08/09/07
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Re: I love conceptual physics [Re: Fungal-one]
#13623784 - 12/12/10 11:32 PM (2 years, 5 months ago) |
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neil degrasse tyson is really good too for grokking the true depth of physics.
I've posted this video before but it's so awesome, Neil waxin poetic:
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Freedom, dude! Science is fucking great! I am higher on this shit than I've ever been in my life. And it's not the beer or the ritalin talking, I've been a lot higher on either and both of those things before.
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Fungal-one
Kneegrow
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Quote:
Tchan909 said:
Freedom, dude! Science is fucking great! I am higher on this shit than I've ever been in my life. And it's not the beer or the ritalin talking, I've been a lot higher on either and both of those things before.
Heed the words of Newton about the love of science being in a young man's blood and how it fades with age. You get old like me and it takes internet drug forums to stimulate your noodle and as we all know the internet will be gone soon
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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d33p
Welcome to Violence
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Bah, I can't find this funny picture I wanted to show you guys. Basically, there a guy on the earth and another on mars. They are both holding the end of a very long stick. By shaking it they are able to communicate faster than light.
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I'm a nihilist. Lets be friends.
bang bang
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Fungal-one
Kneegrow
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Re: I love conceptual physics [Re: g00ru]
#13623849 - 12/12/10 11:40 PM (2 years, 5 months ago) |
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Quote:
guruu said:
neil degrasse tyson is really good too for grokking the true depth of physics.
I've posted this video before but it's so awesome, Neil waxin poetic:
Poetic indeed.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Fungal-one
Kneegrow
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Re: I love conceptual physics [Re: d33p]
#13623855 - 12/12/10 11:41 PM (2 years, 5 months ago) |
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Quote:
d33p said:
Bah, I can't find this funny picture I wanted to show you guys. Basically, there a guy on the earth and another on mars. They are both holding the end of a very long stick. By shaking it they are able to communicate faster than light.
The stick would collapse under its own weight.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Fungal-one
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Re: I love conceptual physics [Re: Fungal-one]
#13623869 - 12/12/10 11:43 PM (2 years, 5 months ago) |
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It fucking sucks that the earth doesnt have Sagan anymore 
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
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Re: I love conceptual physics [Re: Fungal-one] 1
#13623880 - 12/12/10 11:44 PM (2 years, 5 months ago) |
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Quote:
Fungal-one said:
Heed the words of Newton about the love of science being in a young man's blood and how it fades with age. You get old like me and it takes internet drug forums to stimulate your noodle and as we all know the internet will be gone soon
Don't say that, man! I got a 30% in chemistry in high school because it seemed like bullshit to me. Now I'm 24 and only with the power of pharmaceutical stimulants can I focus on it and it's like a braingasm every time I manage to put another more advanced two and two together.
Don't make me feel like I wasted the first six years of my adult life because I'd refused to take ADHD medications! This will lead to further and even more-contentious debate about the existence of ADHD as a "real disorder" and the practicality of stimulant medications! I might be forced to adopt the position that ADHD is real and that amphetamine-like stimulants can be something more meaningful than Drugs being peddled by disreputable dealers posing as healers! I would fucking VOMIT! 
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g00ru
the kava crow
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People who can't focus are real, that doesn't mean they have a 'disorder' other than they're just not good at focusing, which is a skill like anything else.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Re: I love conceptual physics [Re: g00ru]
#13623905 - 12/12/10 11:49 PM (2 years, 5 months ago) |
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No doubt, it's definitely something which must be learned and medication should only serve as a short-term therapy. I agree with that.
I just think it's funny, you know? Given the chance my parents always forced me to get all my work done and I'd get good grades, and when I denied them the opportunity the fuckups would be massive in scale. Somehow I never learned the skill of focus in the middle of all this.
I'm glad I've got the medications now but I'm pretty sure I'll wind up killing myself if I stay on them forever. Clearly I need to take steps to learn this skill on my own.
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Fungal-one
Kneegrow
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24 lol
You are still very much a young man, G
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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So give me some goddamn advice already
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13623939 - 12/12/10 11:58 PM (2 years, 5 months ago) |
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Quote:
Fungal-one said:
24 lol
You are still very much a young man, G
Thanks, you're right, but I still feel kinda old. I can't help but think of how much I could have gotten done by now if I started doing the stuff I'm doing now right out the gates of high school. 
I learned a lot about myself and my world in those six years, but damn, still hard not to see it as wasted time when I realize every little bit of it can be plugged into frameworks which can extend the meaning to so many other than myself. I guess I wouldn't have learned so much in that regard if I'd spent much of that time learning about the frameworks, though.
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Envix
x+x+x+x+x+
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thats why i want to get into physics now. im still only 19 and im thinking if i can get into it now while im still young, can develop quite a clear understanding of the subject before leaving my student years
but i guess ur never too old to learn new thangs
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BlindSophist
you can call me BS
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Re: I love conceptual physics [Re: Envix]
#13624003 - 12/13/10 12:12 AM (2 years, 5 months ago) |
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Some people say that, others say you can't teach an old dog new tricks. Who knows which is right.
The thing about physics though is that you have to do serious math work if you want to go further than the sketchy understanding I've exhibited in this thread. You could be working with the large hadron collider in search of the God Particle, but you'd have to know math that would kill most of us.
This shit is real.
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Fungal-one
Kneegrow
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I think math is just like any of the rest of it. If you can somehow see it in your head then you suddenly understand shit that youve never even heard of.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Envix
x+x+x+x+x+
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well its just a physics1 course. i dont plan on majoring in it or anything. i just have an interest in it and would like to gain a basic understanding of the principles behind it
i guess from there i'm thinking i can expand on whatever branch of physics on my own accord. just learning for personal reasons. i think it would be a cool thing to study just for fun
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BlindSophist
you can call me BS
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Re: I love conceptual physics [Re: Envix]
#13624039 - 12/13/10 12:19 AM (2 years, 5 months ago) |
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I'm seriously thinking about switching my major from cognitive neuroscience to physics right now. I went back to school with the intention to study drugs, and their interactions with the brain, but I'm beginning to wonder just how far I can push that study without better understanding molecular, atomic, and subatomic theory.
I really wish the structures of higher learning conformed to my own hare-brained quests for meaning.
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g00ru
the kava crow
Registered: 08/09/07
Posts: 17,395
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Quote:
Tchan909 said:
No doubt, it's definitely something which must be learned and medication should only serve as a short-term therapy. I agree with that.
I just think it's funny, you know? Given the chance my parents always forced me to get all my work done and I'd get good grades, and when I denied them the opportunity the fuckups would be massive in scale. Somehow I never learned the skill of focus in the middle of all this.
I'm glad I've got the medications now but I'm pretty sure I'll wind up killing myself if I stay on them forever. Clearly I need to take steps to learn this skill on my own.
I dont see any problem in using it constructively. There's plenty of natural ways to gain energy and concentration though, meditating being the simplest.
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Fungal-one
Kneegrow
Registered: 07/14/10
Posts: 5,356
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Quote:
Tchan909 said:
I'm seriously thinking about switching my major from cognitive neuroscience to physics right now. I went back to school with the intention to study drugs, and their interactions with the brain, but I'm beginning to wonder just how far I can push that study without better understanding molecular, atomic, and subatomic theory.
I really wish the structures of higher learning conformed to my own hare-brained quests for meaning.
Your head's gonna splode, nigga
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: g00ru]
#13624074 - 12/13/10 12:25 AM (2 years, 5 months ago) |
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I have to learn balance. IE, I have to learn that I don't need to be "high" to get things done, and this applies even to the taking of stimulant medications for ADHD.
If I can learn that, then I probably could take stimulant medications for long periods of time without the detrimental effects.
I also need to get back on top of meditation... used to be my bread and butter, but I've just been too lazy lately.
Thanks for the assistance in goal-setting, guruu. 
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d33p
Welcome to Violence
Registered: 07/12/03
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Last seen: 2 days, 28 minutes
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Quote:
Tchan909 said:
I'm seriously thinking about switching my major from cognitive neuroscience to physics right now. I went back to school with the intention to study drugs, and their interactions with the brain, but I'm beginning to wonder just how far I can push that study without better understanding molecular, atomic, and subatomic theory.
I really wish the structures of higher learning conformed to my own hare-brained quests for meaning.
You should check out "Neuropsychopharmacology: The Fifth Generation of Progress" if you haven't already.
Awesomeness
--------------------
I'm a nihilist. Lets be friends.
bang bang
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Fungal-one
Kneegrow
Registered: 07/14/10
Posts: 5,356
Loc: No fuckin tellin
Last seen: 1 year, 4 months
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Quote:
Tchan909 said:
I have to learn balance. IE, I have to learn that I don't need to be "high" to get things done, and this applies even to the taking of stimulant medications for ADHD.
If I can learn that, then I probably could take stimulant medications for long periods of time without the detrimental effects.
Thanks for the assistance in goal-setting, guruu.
Quote:
Tchan909 said:
I have to learn balance. IE, I have to learn that I don't need to be "high" to get things done, and this applies even to the taking of stimulant medications for ADHD.
If I can learn that, then I probably could take stimulant medications for long periods of time without the detrimental effects.
Thanks for the assistance in goal-setting, guruu.
You're just like yer moma, ya no good....
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13624105 - 12/13/10 12:30 AM (2 years, 5 months ago) |
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Fungal-one
Kneegrow
Registered: 07/14/10
Posts: 5,356
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Quote:
Tchan909 said:
Im just teasin'. You're just like me. Teachers saying you're frighteningly brilliant yet you do stupid stupid stupid shit. Dammit boy, when are you gonna learn. When boy?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13624126 - 12/13/10 12:33 AM (2 years, 5 months ago) |
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Quote:
Fungal-one said:
Im just teasin'. You're just like me. Teachers saying you're frighteningly brilliant yet you stupid stupid stupid shit. Dammit boy, when are you gonna learn. When boy?
I'd fucking hug you right now if I could.
Oh right. 
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g00ru
the kava crow
Registered: 08/09/07
Posts: 17,395
Loc: atlantis
Last seen: 1 hour, 9 minutes
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Quote:
Tchan909 said:
I have to learn balance. IE, I have to learn that I don't need to be "high" to get things done, and this applies even to the taking of stimulant medications for ADHD.
If I can learn that, then I probably could take stimulant medications for long periods of time without the detrimental effects.
I also need to get back on top of meditation... used to be my bread and butter, but I've just been too lazy lately.
Thanks for the assistance in goal-setting, guruu.
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Fungal-one
Kneegrow
Registered: 07/14/10
Posts: 5,356
Loc: No fuckin tellin
Last seen: 1 year, 4 months
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Quote:
Tchan909 said:
Quote:
Fungal-one said:
Im just teasin'. You're just like me. Teachers saying you're frighteningly brilliant yet you stupid stupid stupid shit. Dammit boy, when are you gonna learn. When boy?
I'd fucking hug you right now if I could.
Oh right.
I accept proposed hug on the grounds that it may stretch my back and feel good.
--------------------
Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13624160 - 12/13/10 12:39 AM (2 years, 5 months ago) |
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BEARHUG
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DieCommie
El Guapo
Registered: 12/11/03
Posts: 25,374
Loc: Street of Dreams
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Re: I love conceptual physics [Re: Envix]
#13624164 - 12/13/10 12:40 AM (2 years, 5 months ago) |
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Quote:
Envix said:
damn the only physics course @ my school is called "Physics"
i want to take some physics for next semester. i've never take a physics course before, but have always had a deep interest in it. readin' a bunch of books n thangs on it, doin' internet thangs lookin up neat physics stuff and concepts n thangs''
i also don't have a very well-established foundation in math skills... would anyone happen to be suggesting a math course that would be beneficial to learning physics thangs?
ive heard of a lot of really smart guys really involved in the math/science worlds having dificulties in physics course .
im wondering if jumping into physics would be a waste of time with my current limited-knowledge of mathematical/scientific learnings
There are generally three types of intro to physics courses that students take. Conceptual physics, like mentioned here, is obviously the least mathematical. It deals with concepts and may have you doing some algebra ("Solving for x" type stuff). It also usually goes real fast through alot of physics in one semester. A different type is called College Physics. This class is usually for non-science majors and pre-meds. It has algebra and some trig. The extent of the trig is basically using sine and cosine functions to find the sides of a triangle. This class goes into a lot more depth than Conceptual Physics and generally takes one school year to cover the material. Finally there is University Physics which is for engineers and physics majors. This is the most mathematical class and it will use algebra, trig. and calculus. For the first half the extent of the calculus is basic integration and differentiation (like finding the area under a curve). In the second half the calculus gets a bit harder electricity and magnetism.
All the 'advanced' math in these courses is kind of forced though. They throw in the trig. and calculus just to make you do trig. and calculus. But it doesnt really add much to your intuitive understanding. I think to get a satisfying introductory understanding of the mathematics behind physics you have to know a bit of differential equations and linear algebra. Differential equations are used heavily in all areas of physics. It is the solutions of these equations that intro textbooks have you memorize and do algebra with.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: d33p]
#13624176 - 12/13/10 12:44 AM (2 years, 5 months ago) |
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Quote:
d33p said:
You should check out "Neuropsychopharmacology: The Fifth Generation of Progress" if you haven't already.
Awesomeness
That is a new term on me but it sounds right up my alley... Wikipedia confirms this, in spite of not having an article on the book itself.
Thanks for the suggestion.
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Fungal-one
Kneegrow
Registered: 07/14/10
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Quote:
Tchan909 said:
BEARHUG
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
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Re: I love conceptual physics [Re: Fungal-one]
#13624269 - 12/13/10 01:06 AM (2 years, 5 months ago) |
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Only if I get to be the guy on the left. The guy on the right doesn't look so sure about himself.
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Fungal-one
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He, I mean I, does, I mean do, look a bit confused, eh?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
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Re: I love conceptual physics [Re: Fungal-one]
#13624318 - 12/13/10 01:17 AM (2 years, 5 months ago) |
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Look, man. Do you want a nice back-stretch or not? There are plenty of other folks around here I could bearhug instead.
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Fungal-one
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13624334 - 12/13/10 01:19 AM (2 years, 5 months ago) |
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Fungal-one
Kneegrow
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Bambi
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Re: I love conceptual physics [Re: Fungal-one]
#13624442 - 12/13/10 01:47 AM (2 years, 5 months ago) |
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My physics teacher showed us this in class a few weeks ago... i thought it was awesome
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Fungal-one
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Re: I love conceptual physics [Re: Bambi]
#13624446 - 12/13/10 01:49 AM (2 years, 5 months ago) |
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Gyros fuckin own
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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kintos
Stranger
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Re: I love conceptual physics [Re: Bambi]
#13624453 - 12/13/10 01:51 AM (2 years, 5 months ago) |
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after reading op's post i was ready to register for a conceptual physics class, but its only a freshman/100 level class and it wouldnt count towards anything in my degree.
if i get screwed out of classes again and have to take just any random class to keep my insurance it will be the coneptual physics one.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: kintos]
#13624463 - 12/13/10 01:55 AM (2 years, 5 months ago) |
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Conceptual physics did not work in favor toward my intended degree (a bachelor's in science in cognitive neuroscience), but I goddamn well took it anyway. I've wasted plenty of time already, and some of that wasted time was well spent, some of that wasted time was wasted. Conceptual physics was wasted time well spent.
Do it.
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Fungal-one
Kneegrow
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You conceptual physics class paid for itself when it indirectly created this long ass thread.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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BlindSophist
you can call me BS
Registered: 07/11/06
Posts: 28,170
Loc: SF Bay Area
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Re: I love conceptual physics [Re: Fungal-one]
#13624480 - 12/13/10 02:01 AM (2 years, 5 months ago) |
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I KNOW right? This is the longest thread I've had since I pissed my words away in P&S (now known as PS&S) years ago.
I fucking love this thread and everybody who has contributed, it's been hugely educational.
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Fungal-one
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I also  this thread but I didnt learn shit
Except maybe that DieCommie knew a thing or two about the topic.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Bambi
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Re: I love conceptual physics [Re: Fungal-one]
#13624632 - 12/13/10 02:52 AM (2 years, 5 months ago) |
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Another thing i learned in my physics class... well we had this question that when something like this: A man is laying down on a raft in a pool. When he gets off the raft and into the water, what happens to the water level of the pool?
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Where Is Life
Where Is My Mind?
Registered: 10/11/09
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Re: I love conceptual physics [Re: Bambi]
#13624996 - 12/13/10 07:05 AM (2 years, 5 months ago) |
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Thanks for posting about your class, I was thinking about a Physics class but I was thinking it might be completely over my head. This class sounds AWESOME.
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Envix
x+x+x+x+x+
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Re: I love conceptual physics [Re: Bambi]
#13625434 - 12/13/10 11:03 AM (2 years, 5 months ago) |
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Quote:
Bambi said:
Another thing i learned in my physics class... well we had this question that when something like this: A man is laying down on a raft in a pool. When he gets off the raft and into the water, what happens to the water level of the pool?
well weight displacement would dictate that the mass of the object entering the water would would displace the level of the water by that much. if it's floating id assume its density is less than that of water therefore wouldnt have as much of an effect as say a human body would, being more dense... amiright?
or am i just blathering nonsense
im thinkin im gonna hold off on physics for now, and focus on music things. ill check out that MIT online course thang and see if i develop a better interest/basic understanding of it from there
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Fungal-one
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Re: I love conceptual physics [Re: Envix]
#13625609 - 12/13/10 11:58 AM (2 years, 5 months ago) |
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Would the buoyancy of the raft but the deciding factor?
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Bambi
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Re: I love conceptual physics [Re: Envix]
#13626987 - 12/13/10 05:23 PM (2 years, 5 months ago) |
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haha, you kinda lost me... im real tired though, up all night last night :/ but back to the problem. Since said person is on a float, he is displacing his weight in water, but when he enters the water he is only displacing his volume in water. Since people are more dense than water, displacing weight is a larger amount, so when the guy takes a swim in the water, the water level will drop.
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Fungal-one
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Re: I love conceptual physics [Re: Bambi]
#13626999 - 12/13/10 05:25 PM (2 years, 5 months ago) |
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I never thought about it like that. Very good, now carry on.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Dr. P. Silocybin
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you should read The Tao of Physics by Fritjof Capra.
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Bambi
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Re: I love conceptual physics [Re: Fungal-one]
#13627116 - 12/13/10 05:45 PM (2 years, 5 months ago) |
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um... If you were to hold a bullet and a gun the same distance above the ground. (assuming you are in a completely flat area) You shoot the loaded gun a the same time you drop the bullet. Which will hit the ground first? the fired bullet or the dropped one?
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Dr. P. Silocybin
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Re: I love conceptual physics [Re: Bambi]
#13627754 - 12/13/10 08:03 PM (2 years, 5 months ago) |
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if you ignore air resistance and the curvature of the earth..
they would hit the ground at the exact same time.
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g00ru
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Quote:
Dr. P. Silocybin said:
you should read The Tao of Physics by Fritjof Capra.
ya that's a good book.
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realfuzzhead
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Re: I love conceptual physics [Re: g00ru]
#13628077 - 12/13/10 09:01 PM (2 years, 5 months ago) |
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++++++
thank you! been looking for mind blowing classes to take next semester, thank you1! any prerequisitits?
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Bambi
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i thought about specifically saying no air resistance... but would it really matter?i figure they both have the same resistance so it still takes them the same time to hit. but yeah curvature of the earth... blah
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Dr. P. Silocybin
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Re: I love conceptual physics [Re: Bambi]
#13628648 - 12/13/10 10:40 PM (2 years, 5 months ago) |
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I was thinking that the air resistance on the pointed tip of a bullet would be different then air resistance on the bullet falling randomly.
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Fungal-one
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Fuck all this stupid egghead shit. Lets get on to the physics of conception like the title says.
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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.
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Dr. P. Silocybin
I dig love
Registered: 09/09/08
Posts: 1,581
Loc: limbo
Last seen: 4 hours, 2 minutes
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Re: I love conceptual physics [Re: Fungal-one]
#13628748 - 12/13/10 11:01 PM (2 years, 5 months ago) |
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If you throw a baseball forwards off the front of a train it will be moving at the speed of the train + the speed of the throw.
A photon of light leaving that same train will always be moving at the exact same speed, regardless of the trains movement.
The speed of light in a vacuum is always the same no matter how the observer is moving relative to the photon. The only time the speed of light changes is when it passes through matter, this is the refraction of light that creates rainbows and the change of depth perception under water.
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Bambi
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The resistance would be different, yes. But since the only resistance that matters is in the y direction, wouldn't it still not matter, assuming of course the dropped bullet does not face downwards.
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