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Invisiblegzuf
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Re: Loose Nonprefessional Crack [Re: bryguy27007]
    #19021951 - 10/23/13 09:05 PM (10 years, 3 months ago)

That's pretty cool shit. So the compressed air would essentially 'be' the weight of the bird even if it's not standing in the box and instead it was flying.

farrrrrrr outttttt mannnnnn


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OfflineSkeletalSpore
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Re: Loose Nonprefessional Crack [Re: Epigallo]
    #19021954 - 10/23/13 09:05 PM (10 years, 3 months ago)

if the bird was accelerating it's weight would increase, but in regard to mass it would stay constant.


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Invisiblegzuf
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Re: Loose Nonprefessional Crack [Re: SkeletalSpore]
    #19021977 - 10/23/13 09:09 PM (10 years, 3 months ago)

Right, hah that's pretty cool. Man anyone else know any cool turn-your-mind-to-mush scenarios?


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Offlinedokunai
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Re: Loose Nonprefessional Crack [Re: gzuf]
    #19022025 - 10/23/13 09:19 PM (10 years, 3 months ago)

Quote:

gzuf said:
That's pretty cool shit. So the compressed air would essentially 'be' the weight of the bird even if it's not standing in the box and instead it was flying.

farrrrrrr outttttt mannnnnn




I mean I feel like that's what I said.

Take the vomit comet for example.  It's a plane where you can experience zero G for a short period of time.  Weightlessness essentially.  But all of the time you are weightless is 'bought' at the cost of your body exerting additional force on the aircraft during the time it is not plummeting.  This isn't as :whoah: as people want to make it out to be.

Just ask Stephen Hawking.



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Invisiblebryguy27007
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Re: Loose Nonprefessional Crack [Re: gzuf]
    #19022032 - 10/23/13 09:20 PM (10 years, 3 months ago)

Quote:

The reasons for seasons

The videotape A Private Universe shows interviews with students just emerging from Harvard's graduation ceremonies, having just received degrees. They were asked some elementary questions about science. One graduate, who said his degree was in Physics, was asked "Why is it generally warmer in Boston in the summer than in the winter?" That question may never have been posed in any of his classes, even college classes. But let's examine this question. Many persons answer "because the earth is closer to the sun in the summer". In fact, the earth is closest to the sun in early January. Let's examine some other answers:
Because the earth's axis is tilted toward the sun in the summer. This is a true statement, but it isn't a full explanation. Also there's some ambiguity in the phrase "tilted toward". It doesn't answer the question "Why does the axis tilt make a difference?" There are several reasons.
The axial tilt causes the sun to be generally higher in elevation above the horizon, and therefore more effective at warming the earth. True, but why does the sun's elevation matter? [Hint: it involves geometry and the angle at which the sunlight impacts surfaces, particularly the ground.] This is the sole reason given in some textbooks and most websites, but it isn't the whole story.
Because the duration of daylight is greater in summer than winter, so the sun has a longer time to warm the earth during daylight hours. This is true, but isn't a full explanation. It doesn't tell why the duration of daylight is greater in summer. [Hint: one must look at the geometry of the axis tilt relative to the plane of the earth's orbit.] This reason is so obvious, we wonder why it isn't mentioned often when this question is raised.
A good explanation needs to start with the fact of the constancy of earth axis orientation in space. Why is it constant? With respect to what? The "fixed" stars? Why should they matter? Doesn't that defy common sense? It doesn't make sense until you have grasped certain concepts of the mechanics of forces and inertia.
Ok, so let's accept that the earth's axis direction is nearly constant, and tilted with respect to the ecliptic plane. Now what? We follow with a geometric analysis to show that this causes the duration of daylight to be greater in the summer. It also causes the average angle of the sun's rays relative to the earth's surface to be greater during summer days. Both of these contribute to greater warming of the earth's surface. Which is most important? More geometry math, and not easy to do. It turns out that they are both significant, so you can't say one is the full explanation. You can say, "the reason is the axial tilt" for both of them, but that's a cop-out to avoid understanding how the tilt is responsible. Who said this was a simple question, suitable for elementary school students?


Warming of the ground
due to sun's rays depends on
their angle of inclination.
Sun's rays in bundle
of cross section A
illuminate an area B = A/cos q
on the ground.

The explanation of how angle of the rays affects warming of earth's surface must be based on concepts of energy and the importance of energy/surface area, not to mention energy conservation and the inverse square law of illumination.





That link has some cool stuff in it. Pretentious, but rightfully so.
Well that quote didn't work, but it's halfway down the link on the first page if you want to read it.


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OfflineEpigallo
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Re: Loose Nonprefessional Crack [Re: gzuf]
    #19022047 - 10/23/13 09:23 PM (10 years, 3 months ago)

There are three doors. Behind one is a pile of $100,000 cash.

Pick a door.

You picked door #3. I won't tell you if it is right or wrong. However, I will open another door. Behind door #2 is....a donkey. Knowing that there is a donkey behind #2, would you like to change your pick to door #1?

You win this brain teaser by telling me WHY you have a reason, based on the events that have unfolded, to either switch or maintain your pick.


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Offlinenicechrisman
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Re: Loose Nonprefessional Crack [Re: hidenseek1]
    #19022051 - 10/23/13 09:24 PM (10 years, 3 months ago)

Sup ma homies? Just got home from work a bit ago. Had some dinner on the way home. Ate a couple ganja brownie bites when I got home. Crazy customers today at work wasting my time and asking my advice and then arguing with me about it. I'm sure part of it must have been my state of mind, but it seemed like people were a little extra crazy today.

Felt a little under the weather towards the end of the day at work. Started sneezing and felt real cold. Hopefully I'm not catching anything. Gonna take it easy tonight and drink lots of lemon water and go to sleep early. I'm off work tomorrow so I'll just take it extra easy and hopefully I'll be good to go for Aikido tomorrow night.


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"Cosmic Love is absolutelely ruthless and highly indifferent:
it teaches its lessons whether you like/dislike them or not."

John C. Lily

 


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Offlinedokunai
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Re: Loose Nonprefessional Crack [Re: Epigallo]
    #19022059 - 10/23/13 09:25 PM (10 years, 3 months ago)

Quote:

bradley said:
There are three doors. Behind one is a pile of $100,000 cash.

Pick a door.

You picked door #3. I won't tell you if it is right or wrong. However, I will open another door. Behind door #2 is....a donkey. Knowing that there is a donkey behind #2, would you like to change your pick to door #1?

You win this brain teaser by telling me WHY you have a reason, based on the events that have unfolded, to either switch or maintain your pick.




Now that you have eliminated one of the doors, I can choose between the remaining ones with a 50% probability of getting the pile of cash.  When I initially had to choose between 3 doors, the probability of getting the pile of cash was 1/3  or ~33.33%. 

Do I win?


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InvisibleVivaLaMushie
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Re: Loose Nonprefessional Crack [Re: Epigallo]
    #19022060 - 10/23/13 09:25 PM (10 years, 3 months ago)

Quote:

bradley said:
There are three doors. Behind one is a pile of $100,000 cash.

Pick a door.

You picked door #3. I won't tell you if it is right or wrong. However, I will open another door. Behind door #2 is....a donkey. Knowing that there is a donkey behind #2, would you like to change your pick to door #1?

You win this brain teaser by telling me WHY you have a reason, based on the events that have unfolded, to either switch or maintain your pick.




Its a 50/50 chance. Ill stick with door #3


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Invisiblejewunit
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Re: Loose Nonprefessional Crack [Re: Epigallo]
    #19022065 - 10/23/13 09:27 PM (10 years, 3 months ago)

You change your guess. When you first picked you were picking on a 1/3 chance. When one of the choices is eliminated, you now get the ability to pick on a 1/2 chance instead. If you don't switch you're sticking with your 33% odds instead.

Note: I've read plenty about it and had it explained plenty of times and I still have extreme difficulty grasping the concept, I just know the correct answer because I've heard the scenario plenty of times.

http://en.wikipedia.org/wiki/Monty_Hall_problem


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InvisibleVivaLaMushie
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Re: Loose Nonprefessional Crack [Re: jewunit]
    #19022068 - 10/23/13 09:28 PM (10 years, 3 months ago)

Reminds me of the movie 21


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OfflineEpigallo
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Re: Loose Nonprefessional Crack [Re: dokunai]
    #19022077 - 10/23/13 09:29 PM (10 years, 3 months ago)

Quote:

dokunai said:
Quote:

bradley said:
There are three doors. Behind one is a pile of $100,000 cash.

Pick a door.

You picked door #3. I won't tell you if it is right or wrong. However, I will open another door. Behind door #2 is....a donkey. Knowing that there is a donkey behind #2, would you like to change your pick to door #1?

You win this brain teaser by telling me WHY you have a reason, based on the events that have unfolded, to either switch or maintain your pick.




Now that you have eliminated one of the doors, I can choose between the remaining ones with a 50% probability of getting the pile of cash.  When I initially had to choose between 3 doors, the probability of getting the pile of cash was 1/3  or ~33.33%. 

Do I win?




Basically, yes. Actually the chances are better than 50% if you switch. See if you can figure that out!


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OfflineEpigallo
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Re: Loose Nonprefessional Crack [Re: jewunit]
    #19022093 - 10/23/13 09:31 PM (10 years, 3 months ago)

Quote:

jewunit said:
You change your guess. When you first picked you were picking on a 1/3 chance. When one of the choices is eliminated, you now get the ability to pick on a 1/2 chance instead. If you don't switch you're sticking with your 33% odds instead.

Note: I've read plenty about it and had it explained plenty of times and I still have extreme difficulty grasping the concept, I just know the correct answer because I've heard the scenario plenty of times.

http://en.wikipedia.org/wiki/Monty_Hall_problem




Me too. Once I remember why I can understand it pretty clearly, but it's hard to remember that line of reasoning. Which is weird, because it's a really short string of logic that gets you to the conclusion. I don't know why it is so difficult.

But it is actually better than 50% odds if you switch.


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Invisiblebryguy27007
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Re: Loose Nonprefessional Crack [Re: jewunit]
    #19022095 - 10/23/13 09:31 PM (10 years, 3 months ago)

Quote:

jewunit said:
You change your guess. When you first picked you were picking on a 1/3 chance. When one of the choices is eliminated, you now get the ability to pick on a 1/2 chance instead. If you don't switch you're sticking with your 33% odds instead.

Note: I've read plenty about it and had it explained plenty of times and I still have extreme difficulty grasping the concept, I just know the correct answer because I've heard the scenario plenty of times.

http://en.wikipedia.org/wiki/Monty_Hall_problem




Oh god. I just flash-backed to 8th grade. My dad and I spent like 30 minutes at the kitchen table trying to grok the Monty Hall problem. We were drawing diagrams and everything, :lol:. It's a pretty cool problem. Math is really interesting.


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Invisiblejewunit
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Re: Loose Nonprefessional Crack [Re: Epigallo]
    #19022111 - 10/23/13 09:35 PM (10 years, 3 months ago)

What is it, 66% you'll be right by switching?

Yes, that seems to be what the Wiki article states. Makes sense.


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Invisiblebarong
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Re: Loose Nonprefessional Crack [Re: jewunit]
    #19022120 - 10/23/13 09:36 PM (10 years, 3 months ago)

If a bird flies in a box, does anybody weigh?


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OfflineEpigallo
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Re: Loose Nonprefessional Crack [Re: jewunit]
    #19022126 - 10/23/13 09:36 PM (10 years, 3 months ago)

Spoiler alert: yes.


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Invisiblegzuf
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Re: Loose Nonprefessional Crack [Re: Epigallo]
    #19022152 - 10/23/13 09:41 PM (10 years, 3 months ago)

I don't get how having the donkey in 3 changes the chances of winning? Isn't 1 or 2 just as likely no matter what?


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Offlinehidenseek1
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Re: Loose Nonprefessional Crack [Re: gzuf]
    #19022173 - 10/23/13 09:45 PM (10 years, 3 months ago)

Quote:

gzuf said:
I don't get how having the donkey in 3 changes the chances of winning? Isn't 1 or 2 just as likely no matter what?




your chances of winning go up as long as you didnt pick the right door in the first place, which is unlikely because thats a 1/3 chance


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OfflineEpigallo
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Re: Loose Nonprefessional Crack [Re: gzuf]
    #19022217 - 10/23/13 09:52 PM (10 years, 3 months ago)

Quote:

gzuf said:
I don't get how having the donkey in 3 changes the chances of winning? Isn't 1 or 2 just as likely no matter what?




Well to keep things consistent, I said the donkey was in #2 and you picked #3. But anyway, think of it like this. You are betting on two different situations. In the first situation, you know nothing about the three doors. In the second, you know something about one of the three doors. It's not really the same bet...it just has the illusion of continuity. Although the physical situation has not changed, your knowledge of it has.

The really tricky thing is why it is a 66% chance if you switch and not 50%. I can convince myself of why and then immediately afterwards think, no, 50% sounds right.


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