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Offlinenightkrawler
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physics question
    #6392376 - 12/20/06 10:17 PM (17 years, 3 months ago)

E=mc2

so technically nothing can reach the speed of light because the mass of an object increases proportional to it's speed. it would need an infinite amount of energy. but how is it that an objects mass increases the faster it goes? this doesnt make a whole lot of sense to me. can someone explain? i havent taken physics in a good 4 years.


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleCowgold
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Re: physics question [Re: nightkrawler]
    #6392396 - 12/20/06 10:20 PM (17 years, 3 months ago)

Basicly E=C^3

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InvisibleHELLA_TIGHT
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Re: physics question [Re: nightkrawler]
    #6392403 - 12/20/06 10:22 PM (17 years, 3 months ago)

because jesus fucking says so, stop asking questions


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Offlinenightkrawler
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Re: physics question [Re: HELLA_TIGHT]
    #6392406 - 12/20/06 10:24 PM (17 years, 3 months ago)

buuuuut i want to know!!!


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleDieCommie

Registered: 12/11/03
Posts: 29,258
Re: physics question [Re: nightkrawler]
    #6392420 - 12/20/06 10:27 PM (17 years, 3 months ago)

The mass most people know is "rest mass", which is different than "relativistic mass". An example is a photon which has no rest mass but does have a relativistic mass.

Basically in physics there are different ways to define mass.

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Offlinenightkrawler
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Re: physics question [Re: DieCommie]
    #6392437 - 12/20/06 10:29 PM (17 years, 3 months ago)

hmmm, i wish i could make that make sense in my head


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Not all who wander are lost - J.R.R. Tolkien

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Offlinenightkrawler
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Re: physics question [Re: nightkrawler]
    #6392463 - 12/20/06 10:34 PM (17 years, 3 months ago)

why are so many people viewing a thread called physics question? i certainly wouldnt go near this thread if i didnt post it (or think i could answer it).

PS 5 shrooms to whoever can help me understand this. that and i'll let you try out my time machine once it's complete


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Not all who wander are lost - J.R.R. Tolkien

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OfflineNobodyCares
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Re: physics question [Re: nightkrawler]
    #6392506 - 12/20/06 10:46 PM (17 years, 3 months ago)

Give me a few minutes to call my pledge dad, the physics major... I just hope he's not drunk/high yet.  :thumbup:


--------------------
The story goes, or the way that I was told
There was a king that always felt too high and then he fell too low
And so he called all the wise men to the hall
And begged them for a gift to end the rises and the falls
But here’s the thing, they came back with a ring
It was simple and was plainly unbefitting of a king
Engraved in black, it had no front or back
But there were words around the band that said
Just know: This Too Shall Pass


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OfflineSyle
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Re: physics question [Re: nightkrawler]
    #6392527 - 12/20/06 10:48 PM (17 years, 3 months ago)

Quote:

nightkrawler said:
hmmm, i wish i could make that make sense in my head




just force it till your brain bleeds, then you will die, then it won't matter and you won't have to ask these types of questions.

problem solved! now give me 3 milliong dollars please before I call the cops.


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https://kenaisigh.bandcamp.com/ <- Just completed the 2021 RPM challenge for February - An EP in one month (5 songs or 20 minutes). Check it out!

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InvisibleDNKYD
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Re: physics question [Re: Syle]
    #6392532 - 12/20/06 10:49 PM (17 years, 3 months ago)

"If it weren't for my horse I wouldn't have spent that year in college"

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Offlinenightkrawler
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Re: physics question [Re: NobodyCares]
    #6392535 - 12/20/06 10:49 PM (17 years, 3 months ago)

why thank you kind sir


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleScott Bennett
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Re: physics question [Re: nightkrawler]
    #6392536 - 12/20/06 10:49 PM (17 years, 3 months ago)

Everyone in this thread who has posted so far is completely wrong.


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It's just some nights, you really want to go out, get some hot bitch to dump Goose down your throat and snort coke off a stripper's tits.

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InvisibleScott Bennett
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Re: physics question [Re: DNKYD]
    #6392543 - 12/20/06 10:51 PM (17 years, 3 months ago)

Don't think about that.

PS - I just lost the game.


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It's just some nights, you really want to go out, get some hot bitch to dump Goose down your throat and snort coke off a stripper's tits.

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Offlinenightkrawler
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Re: physics question [Re: Scott Bennett]
    #6392564 - 12/20/06 10:56 PM (17 years, 3 months ago)

Quote:

ThaiLipaYai said:
Everyone in this thread who has posted so far is completely wrong.




then i'm doomed. i'm never going to get this time machine working by the time i get assassinated. once i find out who the assassin is i have to go back in time and off him, so he can't assassinate me in the future. kind of complicated, but what it all comes down to is that i need answers!!


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleScott Bennett
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Re: physics question [Re: nightkrawler]
    #6392574 - 12/20/06 10:57 PM (17 years, 3 months ago)

Does it help that c = (E/m)^0.5
?


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It's just some nights, you really want to go out, get some hot bitch to dump Goose down your throat and snort coke off a stripper's tits.

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InvisibleDNKYD
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Re: physics question [Re: nightkrawler]
    #6392577 - 12/20/06 10:58 PM (17 years, 3 months ago)

Call up John Titor and discuss plans over some futuristic coffee.

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InvisibleDieCommie

Registered: 12/11/03
Posts: 29,258
Re: physics question [Re: nightkrawler]
    #6392578 - 12/20/06 10:58 PM (17 years, 3 months ago)

"Rest mass" is the mass that you meaure when you weigh something. Its also the mass that you feel when you try to push something heavy. This mass doesnt change due to a relative velocity, its an invarient mass. So far physicists think the mass you wiegh and the mass you feel when accelerating something are the same.

"Relativistic mass" is the mass you get from having something with a velocity. Basically when an object has a velocity, it has an energy (Kinetic energy) and this energy can be thought of as a mass via E = M c^2.

I know that the above is not quite correct, but hopefull it helps more than it hurts.

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Offlinenightkrawler
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Re: physics question [Re: Scott Bennett]
    #6392579 - 12/20/06 10:59 PM (17 years, 3 months ago)

only as much as it helps that m= c^2/e


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleScott Bennett
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Re: physics question [Re: DieCommie]
    #6392581 - 12/20/06 10:59 PM (17 years, 3 months ago)

The only reason mass has anything to do with weight is because weight = gm


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It's just some nights, you really want to go out, get some hot bitch to dump Goose down your throat and snort coke off a stripper's tits.

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InvisibleScott Bennett
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Re: physics question [Re: nightkrawler]
    #6392584 - 12/20/06 11:00 PM (17 years, 3 months ago)

You want to come over and talk it out?


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It's just some nights, you really want to go out, get some hot bitch to dump Goose down your throat and snort coke off a stripper's tits.

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Offlinenightkrawler
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Re: physics question [Re: nightkrawler]
    #6392586 - 12/20/06 11:00 PM (17 years, 3 months ago)

ahhh thanks diecommie, something just clicked a little


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleTM
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Re: physics question [Re: nightkrawler]
    #6392591 - 12/20/06 11:02 PM (17 years, 3 months ago)

It's simple, dude. You need a warp engine to drive matter to light speed and beyond. It can be done... I'd say ask Scotty how it works, but he's dead, Jim. :lol:


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================================================



"Have some congratulatory drugs." - C. Montgomery Burns

I'll probably always do drugs, so that just contributes to the addiction to The Shroomery... It's a vicious circle of bliss. :tongue2:

TM™ :cool:

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InvisibleDieCommie

Registered: 12/11/03
Posts: 29,258
Re: physics question [Re: nightkrawler]
    #6392605 - 12/20/06 11:06 PM (17 years, 3 months ago)

Your welcome.

If you know algebra, look at the "Lorentz Factor" written as lowwer case gamma.  This will illuminate why you would need an infinite energy.  If you hit the speed of light, you divide by zero (which is an error).  The limit as the denominator approaches zero is infinity.  That is the closer the denominator gets to zero, the higher you number is.  It approaches infinity as the velocity approaches 'c'.  This is why you would need infinite energy/mass to go the speed of light.

Fascinating and fun stuff. :thumbup:

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Offlinenightkrawler
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Re: physics question [Re: DieCommie]
    #6392626 - 12/20/06 11:14 PM (17 years, 3 months ago)

hmm, looking at this i remember the lorentz factor from high school physics: http://en.wikipedia.org/wiki/Lorentz_factor

it's a shame i only knew about this stuff then cause i had to know about it, now when i actually want to know about it, it's all just faded memories.

it's actually making some sense now though.


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleDieCommie

Registered: 12/11/03
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Re: physics question [Re: nightkrawler]
    #6392639 - 12/20/06 11:18 PM (17 years, 3 months ago)

Cool.

Special Relativity is actually not that hard to get a basic grasp of (unlike general relativity). In my first University Physics class (mechanics) we did the chapter on special relativity first! (before even newton's equations) You dont need any of that other stuff in mechanics to understand how the eqations work.

Understanding why they are the way that they are is another story.

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OfflineTheCow
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Re: physics question [Re: nightkrawler]
    #6392667 - 12/20/06 11:32 PM (17 years, 3 months ago)

Read up on tensors. :shudders:

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Offlinenightkrawler
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Re: physics question [Re: TheCow]
    #6392693 - 12/20/06 11:54 PM (17 years, 3 months ago)

after wikiing tensor, it doesnt look like i want anything to do with a tensor at this moment in my life


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Not all who wander are lost - J.R.R. Tolkien

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OfflineNobodyCares
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Re: physics question [Re: nightkrawler]
    #6392706 - 12/21/06 12:01 AM (17 years, 3 months ago)

Tensor..? Permeability..? Euclidean what now..?


--------------------
The story goes, or the way that I was told
There was a king that always felt too high and then he fell too low
And so he called all the wise men to the hall
And begged them for a gift to end the rises and the falls
But here’s the thing, they came back with a ring
It was simple and was plainly unbefitting of a king
Engraved in black, it had no front or back
But there were words around the band that said
Just know: This Too Shall Pass


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OfflineFingerfoods
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Re: physics question [Re: NobodyCares]
    #6392780 - 12/21/06 12:59 AM (17 years, 3 months ago)

I remember reading somewhere that as you approach the speed of light, you become energy/light itself.


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http://palebluedot.ytmnd.com/ watch this shrooming and youll never think the same about the world agian.

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Offlinecybrbeast
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Re: physics question [Re: nightkrawler]
    #6392834 - 12/21/06 01:35 AM (17 years, 3 months ago)

You have a better chance of getting a good answer if you ask this in the Science and Tech forum.

btw, Happy Birthday!


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futuretribe.space

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OfflineColbadol
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Re: physics question [Re: nightkrawler]
    #6393101 - 12/21/06 07:40 AM (17 years, 3 months ago)

it means that when you go exercise by running, youre actually getting fatter.


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Offlinenightkrawler
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Re: physics question [Re: Colbadol]
    #6393389 - 12/21/06 09:44 AM (17 years, 3 months ago)

thanks cybrbeast!

Quote:

Colbadol said:
it means that when you go exercise by running, youre actually getting fatter.




:lol:


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Not all who wander are lost - J.R.R. Tolkien

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InvisibleWhiskeyClone
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Re: physics question [Re: nightkrawler]
    #6393671 - 12/21/06 11:13 AM (17 years, 3 months ago)

Read this book:





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Welcome evermore to gods and men is the self-helping man.  For him all doors are flung wide: him all tongues greet, all honors crown, all eyes follow with desire.  Our love goes out to him and embraces him, because he did not need it.

~ R.W. Emerson, "Self-Reliance"

:heartpump:

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