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Freefall from the Edge of Space
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| HarbingerDawn | Date: Monday, 15.10.2012, 16:10 | Message # 16 |
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| Quote (SpaceEngineer) I missed the jump due to problems on youtube.
I had problems with Youtube as well, though I found that watching the video in its own youtube page rather than on their channel helped a lot.
Red Bull has released a short "highlight" video here. It doesn't show the whole jump, but what little it does show is in higher quality than it was during the live stream.
The best record of the whole jump that I could easily find on Youtube is here (if anyone has a better link please post it!):
http://www.youtube.com/watch?v=MT1DhcQg0Os
On an unrelated note, looking at the comments on all these vids of the jump circulating around makes me sick. It's a bunch of people going around screaming about how it's either fake, or how he should have burned up, or why is he falling if he's in space, etc., and then other people saying equally dumb things but pretending to know what they're talking about, like that he's falling because he's still in the atmosphere, or that the purpose of the mission was to study evacuation options for astronauts (which this mission would be nearly worthless for given the low speeds involved). And the fact that much of the media has popularized it as a "jump from space" has only compounded the problem.
The self-reinforcing ignorance of the world makes me loathe living in it.
</rant>
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| Antza2 | Date: Monday, 15.10.2012, 16:53 | Message # 17 |
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| Quote (HarbingerDawn) how he should have burned up
Why on earth would he burn up? Our fighters don't burn when they reach those speeds.
Quote (HarbingerDawn) why is he falling if he's in space
That must be a troll. It's simple physics.
Quote (HarbingerDawn) or that the purpose of the mission was to study evacuation options for astronauts
What? 
People are stupid, and it makes me sad. 
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Edited by Antza2 - Monday, 15.10.2012, 16:54 |
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| HarbingerDawn | Date: Monday, 15.10.2012, 17:12 | Message # 18 |
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| Quote (Antza2) That must be a troll. It's simple physics.
I don't think it was a troll. I personally know many people who really are that dense.
Quote (Antza2) Why on earth would he burn up?
Because he was falling from space, duh! 
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| Antza2 | Date: Monday, 15.10.2012, 17:21 | Message # 19 |
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| Quote (HarbingerDawn) Because he was falling from space, duh!
Yeah. What was i thinking.
Quote (HarbingerDawn) I personally know many people who really are that dense.
I fortunately don't, and i wouldn't want to.
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| DoctorOfSpace | Date: Monday, 15.10.2012, 18:35 | Message # 20 |
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| Quote (HarbingerDawn) fake, or how he should have burned up, or why is he falling if he's in space, etc., and then other people saying equally dumb things but pretending to know what they're talking about, like that he's falling because he's still in the atmosphere, or that the purpose of the mission was to study evacuation options for astronauts (which this mission would be nearly worthless for given the low speeds involved). And the fact that much of the media has popularized it as a "jump from space" has only compounded the problem.
The fact anyone can "think" such things
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| HarbingerDawn | Date: Monday, 15.10.2012, 18:51 | Message # 21 |
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| Quote (DoctorOfSpace) The fact anyone can "think" such things
C'mon people, this isn't 'Nam, this is science, there are rules.
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Edited by HarbingerDawn - Monday, 15.10.2012, 18:53 |
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| neutronium76 | Date: Monday, 15.10.2012, 19:26 | Message # 22 |
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| Speaking of science can anyone calculate the max altitude that a human can jump with a spacesuit and not burn?
I found some formulas here: http://en.wikipedia.org/wiki/Free_fall
If you scroll down to section: Freefall in Newtonian mechanics --> Uniform gravitational field with air resistance you could use max speed Mach 2 maybe and solve one of these equations for Height? However it states at the end of this paragraph:
''When the air density cannot be assumed to be constant, such as for objects or skydivers falling from high altitude, the equation of motion becomes much more difficult to solve analytically and a numerical simulation of the motion is usually necessary. The figure shows the forces acting on meteoroids falling through the Earth's upper atmosphere. HALO jumps, including Joe Kittinger's and Felix Baumgartner's record jumps (see below), and the planned Le Grand Saut, also belong in this category''
So I guess none of these equations can be used .
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Edited by neutronium76 - Monday, 15.10.2012, 19:27 |
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| apenpaap | Date: Monday, 15.10.2012, 20:57 | Message # 23 |
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| Well, if it's mach 2 you can maximally safely enter Earth's atmosphere with, then it's 651 m/s that is the maximum safe speed, so that's a 66 second drop. d=1/2gt^2, and t=66. Therefore d=21400 metres. So assuming that, you could drop 21 kilometres in pure vacuum before hitting the upper layers of Earth's atmosphere and slowing down, and still survive. But as you said, it's not a very meaningful number since Earth's atmosphere doesn't just start suddenly.
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| HarbingerDawn | Date: Monday, 15.10.2012, 21:01 | Message # 24 |
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| Quote (neutronium76) Speaking of science can anyone calculate the max altitude that a human can jump with a spacesuit and not burn?
After doing some tests with the XR2 in Orbiter, I would say that you could probably do a jump from 70 or 80 km without needing any special protection (the spacesuit would be enough). In the 100-120 km range (the altitude of SpaceShipOne) some minor protection would be needed; perhaps just a different layer of material in the spacesuit to absorb the heat. From 400 km (ISS altitude) you would experience acceleration levels in the atmosphere that would definitely cause you to black out and could even be fatal, and the heat would roast you alive
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| SpaceEngineer | Date: Monday, 15.10.2012, 21:16 | Message # 25 |
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| Quote (HarbingerDawn) or that the purpose of the mission was to study evacuation options for astronauts
LoL! I saw few months ago a movie where man escaped exploding space station by just jumped out in a suit, then fallen down to Earth and landed with parachute. Such anti-physical scenario! Maybe this movie was remembered by those people...
Edit: it seems station was not orbiting the Earth, but hanging over one point of surface (some anti-gravity? lol). So if its altitude not much bigger than few hundreds kilometers, as HarbingerDawn said, such jump may be possible. But anyway, scenario of that movie is stupid: why build a space prison (!) where from prisoner can escape just taking a space-suit? If the station would orbit the Earth like normal satellite, it would be impossible.
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| DoctorOfSpace | Date: Monday, 15.10.2012, 22:43 | Message # 26 |
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| Pfft you guys got it all wrong on the speed
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| Antza2 | Date: Monday, 15.10.2012, 22:44 | Message # 27 |
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| Quote (DoctorOfSpace) Pfft you guys got it all wrong on the speed
AHAHAAHAHAHA!
This is hilarious!
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| anonymousgamer | Date: Monday, 15.10.2012, 22:55 | Message # 28 |
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| Quote (HarbingerDawn) looking at the comments on all these vids of the jump circulating around makes me sick.
It's my new daily entertainment section.
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| HarbingerDawn | Date: Monday, 15.10.2012, 23:15 | Message # 29 |
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| Quote (DoctorOfSpace) Pfft you guys got it all wrong on the speed
I don't want to live on this planet anymore 
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| DoctorOfSpace | Date: Monday, 15.10.2012, 23:32 | Message # 30 |
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| Quote (HarbingerDawn) I don't want to live on this planet anymore
I hear he went so fast he met himself going up on the way down.
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