[QUOTE=ASmellyOgre;36127924]I'm not going to be impressed until someone does this from orbit. Just saying.
[url=http://www.facepunch.com/showthread.php?t=1187186&p=36131257&viewfull=1#post36131257]Before you rate me dumb, realize that it's possible to fall from orbit if you break the orbit by slowing down.[/url][/QUOTE]
[img]http://3.bp.blogspot.com/_0Tv4LfapLTw/TEr1w5MnPhI/AAAAAAAACPE/P7BegD8kzVw/s640/ARD_Reentry.jpg[/img]
See that? That's a re-entry vehicle being subjected to immense heat during guess what, re-entry.
[QUOTE=ASmellyOgre;36131257]Oh, that's why I got all of those dumb ratings. You guys do know it's possible to decelerate, right? I'm talking about something like what Orbital Outfitters is trying to do. Make a suit with the proper thrusters on it to jump out of an orbiting spacecraft, stabilize you if you're wildly spinning, do a retrograde burn to slow you, then fall the however many miles to the surface safely. I'm saying that a jump like that would be truly impressive, unlike this, which is just jumping from increasingly high-up balloons.[/QUOTE]
Have fun burning up.
[QUOTE=gbtygfvyg;36127967]After falling through the atmosphere.
[img]http://i.imgur.com/roIGG.jpg[/img][/QUOTE]
Silly question, but speaking of catching fire, wont that happen to him?
[QUOTE=dass;36131532]Silly question, but speaking of catching fire, wont that happen to him?[/QUOTE]
The skydiver won't reach velocities high enough to cause significant enough friction in the atmosphere to generate high temperatures.
They're talking about him going faster than the speed of sound, at 32km and -45 degrees Celcius, that's ~300m/s
A spaceship during re-entry is doing around 7800 - 10000 m/s (mostly depending on where it's coming from), which obviously creates a lot of friction when it slows down due to drag in the atmosphere.
[QUOTE]becoming the first human being to break the speed of sound in a free-fall jump.[/QUOTE]
I was okay with this until here
The only times humans go past the speed of sound are when they're encased in giant metal vehicles and strapped to a million things to keep the Gs from crushing them
He's either going to die or not die and be the greatest. I want GoPro footage either way.
Also
[video=youtube;WSnrZf3a7rE]http://www.youtube.com/watch?v=WSnrZf3a7rE[/video]
[QUOTE=EvacX;36131486][img]http://3.bp.blogspot.com/_0Tv4LfapLTw/TEr1w5MnPhI/AAAAAAAACPE/P7BegD8kzVw/s640/ARD_Reentry.jpg[/img]
See that? That's a re-entry vehicle being subjected to immense heat during guess what, re-entry.[/QUOTE]
If a person was to somehow fall straight downwards from LEO height (rather than actually being in orbit and letting the orbit decay), it would be possible to avoid all the heating. An example of this is SpaceShipOne and SpaceShipTwo - during descent both descend in an orientation which makes their wing pretty much perpendicular to the air flow, so high drag is achieved but no thermal protection is required. But it only works because their velocity at that point is not that great; definitely nowhere near as, say, a space shuttle.
[QUOTE=latin_geek;36131868]I was okay with this until here
The only times humans go past the speed of sound are when they're encased in giant metal vehicles and strapped to a million things to keep the Gs from crushing them
He's either going to die or not die and be the greatest. I want GoPro footage either way.[/QUOTE]
Um, there's something called air density that decreases as you gain altitude.
It [I]gradually[/I] increases and slows you down without intense G-forces.
Joseph Kittinger who jumped from 31 km almost got supersonic as well when he reached a speed of 275 m/s.
[editline]30th May 2012[/editline]
[QUOTE=Uber|nooB;36131902]If a person was to somehow fall straight downwards from LEO height (rather than actually being in orbit and letting the orbit decay), it would be possible to avoid all the heating. An example of this is SpaceShipOne and SpaceShipTwo - during descent both descend in an orientation which makes their wing pretty much perpendicular to the air flow, so high drag is achieved but no thermal protection is required. But it only works because their velocity at that point is not that great; definitely nowhere near as, say, a space shuttle.[/QUOTE]
This wouldn't work for people though, because we don't really have wings that we can orient around to do that.
Obviously if you load yourself up with enough equipment, you're going to be able to do things you can't without, but there's a line between free falling and everything else.
Objects such as shuttles and satellites have a huge velocity already because they've already travelled near orbit velocity (several thousand km/s at low earth orbit). So if he just goes straight up and comes back down I doubt heating up by air resistance will be a problem.
[QUOTE=latin_geek;36131868]
The only times humans go past the speed of sound are when they're encased in giant metal vehicles and strapped to a million things to keep the Gs from crushing them
He's either going to die or not die and be the greatest. I want GoPro footage either way.
[URL]http://www.youtube.com/watch?v=WSnrZf3a7rE[/URL][/video][/QUOTE]
Umm the highest acceleration he will feel during the freefall will be <9.81m/s^2. That's ~one G for you. He hear the sonic boom and will probably feel some minor "turbulence" when he hits 1 mach.
Make a human shaped capsule out of pica-x that breaks open after re-entry revealing the skydiver and toss it out of an orbiting capsule. That would still probably be uncomfortably hot inside but its better than dying.
Your you could stap a guy in one of those capsules we use for rovers that pops open after re-entry.
Not really being serious, but I don't see why such a thing wouldnt work.
[QUOTE=ASmellyOgre;36131257]Oh, that's why I got all of those dumb ratings. You guys do know it's possible to decelerate, right? I'm talking about something like what Orbital Outfitters is trying to do. Make a suit with the proper thrusters on it to jump out of an orbiting spacecraft, stabilize you if you're wildly spinning, do a retrograde burn to slow you, then fall the however many miles to the surface safely. I'm saying that a jump like that would be truly impressive, unlike this, which is just jumping from increasingly high-up balloons.[/QUOTE]
Decelerate is not a word. You're just accelerating the opposite direction.
[QUOTE=Mr. Smartass;36133349]Decelerate is not a word. You're just accelerating the opposite direction.[/QUOTE]
This is a little too nitpicky even for me.
Using 'deceleration' in common speech is perfectly fine.
[QUOTE=Mr. Smartass;36133349]Decelerate is not a word. You're just accelerating the opposite direction.[/QUOTE]
I expect better of a native speaker...
[url]http://oxforddictionaries.com/definition/decelerate?q=decelerate[/url]
[QUOTE=Mr. Smartass;36133349]Decelerate is not a word. You're just accelerating the opposite direction.[/QUOTE]
username fits
[QUOTE=Mr. Smartass;36133349]Decelerate is not a word. You're just accelerating the opposite direction.[/QUOTE]
It is a word, it just simply means what you wrote. Deceleration simply means that the acceleration is negative, meaning that it is slowing down.
Augh, I could never do that
the waiting as I fall would be insane
[QUOTE=ASmellyOgre;36131257]Oh, that's why I got all of those dumb ratings. You guys do know it's possible to decelerate, right? I'm talking about something like what Orbital Outfitters is trying to do. Make a suit with the proper thrusters on it to jump out of an orbiting spacecraft, stabilize you if you're wildly spinning, do a retrograde burn to slow you, then fall the however many miles to the surface safely. I'm saying that a jump like that would be truly impressive, unlike this, which is just jumping from increasingly high-up balloons.[/QUOTE]
Honestly, you got all the dumbs because of the "I'm not going to be impressed" crap.
Alright, like, cool.
I really do hope there's a camera attached to his helmet or something. Watching this whole thing in 720p would be amazing.
[QUOTE=Lyoko774;36137298]I really do hope there's a camera attached to his helmet or something. Watching this whole thing in 720p would be amazing.[/QUOTE]
Redbull is involved, which means there is a 90% chance that he's carrying a GoPro somewhere, so expect 1080p.
What if he pussies out just as he's about to jump?
Reminds me of Dayvan Cowboy, best skydiving music ever.
[media]http://www.youtube.com/watch?v=A2zKARkpDW4&ob=av3e[/media]
[QUOTE=Ericson666;36138128]What if he pussies out just as he's about to jump?[/QUOTE]
He wouldn't have a choice when he gets up there. Unless he backs out before he rides the balloon, he's going to have to jump.
[QUOTE=Polyethylene;36138141]Reminds me of Dayvan Cowboy, best skydiving music ever.
[media]http://www.youtube.com/watch?v=A2zKARkpDW4&ob=av3e[/media][/QUOTE]
I don't remember the guy in the video but his glove ruptured and his hand swelled :v:
I love this song though. Whenever I see High Altitude Skydiving I can't help but think that song
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