Red Bull Stratos

[Homeslice]

Originally Posted by Smittie61984

(though technically I think you could say you are accelerating at 0 meters per second for every second

Finally I understand why the seconds are squared. Been so many years since school that I forgot that shit. Its talking about a velocity increase of X mps every second. So, if the acceleration was 5 mpss, then the velocity would be 5 mps after the first second, 10 after the second, and so on.

But what if the rate of accel is increasing, how would you express that in one number?

[Trip]

Pressure has everything to do with this. Go scuba diving. Feel what it feels like to have water just totally pushing against you. We have that same feeling of pressure on land as well and where you were jumping from... Where he was at, there was almost 0 pressure. He really just didn't feel much until he started spinning.

He probably really felt the initial acceleration off the balloon, but once he lost a reference, it was probably as close to the feeling of weightlessness as you can get.

[Homeslice]

Originally Posted by Trip

He probably really felt the initial acceleration off the balloon

That's what I'm talking about.

[Trip]

He's also under as close to constant acceleration as you can get. A lot of the stuff you talk about on earth is changing accelerations which your body can feel.

If you take off in a car and acceleration is kept constant, you are much less impacted by the change in velocity. Add in no real friction and pressure and you got weightlessness.

In space, if you jet yourself one way for just a moment, you will just keep accelerating with nothing to cause friction to slow you down, but you don't feel it at all.

Think about how a boat moves across the water at slow speeds, but you have water and air that will eventually slow it down.

[Smittie61984]

Kittinger talking about being suspended in space
http://www.youtube.com/watch?v=8V2ncwumv9o

[Smittie61984]

Another one.
http://www.youtube.com/watch?v=MQ7N6V-YKJ8

[Homeslice]

Originally Posted by Trip

In space, if you jet yourself one way for just a moment, you will just keep accelerating with nothing to cause friction to slow you down, but you don't feel it at all.

Correction, you would keep accelerating only while the engine was on. When you shut it off, you would remain at the same velocity forever, unless disturbed.

Also, when you say "you don't feel it", I disagree, because your back would be pressed into the seat when you hit go. In fact that's the biggest BS about sci-fi movies, next to the noise in space issue.

[Trip]

Originally Posted by Homeslice

Correction, you would keep accelerating only while the engine was on. When you shut it off, you would remain at the same velocity forever, unless disturbed.

Also, when you say "you don't feel it", I disagree, because your back would be pressed into the seat when you hit go. In fact that's the biggest BS about sci-fi movies, next to the noise in space issue.

Yeah I fucked up on that one. My bad, thanks for the correction.

[Particle Man]

I was just thinking about how he could see the world spinning like a mother fucker through his faceplate - that would make me yack

[Smittie61984]

Maybe I should have tried it in Homeslice terms.

Instead of using acceleration=Force/mass, we'll say style=budget/fashion. Budget is the net product of work times time. If you aint gots no work then your budget equals 0. With a budget at 0 you won't feel the desired affect of stylin and profilin.

For everything else Khhhhhhaaaaaaaannnnnnn!!!!
http://www.khanacademy.org/science/physics/mechanics