It's Very Cold... In Space

[PlatinumGold]

In space you would only loose heat by radiation, which is a much smaller part of the cooling process than convection. There is no atoms to absorb the heat in your body. Your body could easily keep up with the rate of heat loss in space. breathing would be a different matter.

actually the heat of your body is the problem. as pressure decreases relative temperature increases. what was normal temperature for your body becomes a temperature soo high (as pressure decreases) that your blood and all fluids would boil off almost instantly. that action of boiling off would also draw heat away from your body so that whatever is left would freeze instantly.

 

[glenn1]

Do you want to hear something really scary? When tanks (Army and the such) shoot depleted uranium shells, they penetrate through the tank so fast that they create an incredible vacuum inside the tank that was hit. The crew gets sucked out through the hole in the other side because of the huge pressure change that is created. Much like if at 30K feet if your window on the plane was to get removed, you would get sucked out.

You forgot one part. When the DU sabot hits the hull of the target, all that armor in the path of the round has to go somewhere... the shell doesn't magically slide in between the steel atoms. So what happens is the sabot converts part of its considerable kinetic energy (it's typically travelling at mach 5 or so) into superheating the hull steel in its path, which is melted instantly. The inertia of the round pushes that molten stream of steel through the inside of the tank, destroying everything in its wake even before the round completely penetrates. Even if the crew survived the stream of 4000 degree hot molten steel, the concussion wavefront of the "penetrator" combined with the heat gained in penetration would finish them off. Everything inside the closed confines of the vehicle is either incinerated, crushed by the percussive shockwave, or blown apart by the secondary explosions from "cookoffs" of the tank's own ammunition.

Yes, typically the round has enough residual energy to completely pass through the second tank wall. But still, there generally isn't a whole helluva lot left to "suck out the hole in the other end."