What would have hapend if the astronaut took his boot off for one minute when he was on the moon?

It actually would not freeze right away. Yes, its very cold in space, but don't forget, there is no air and so there is nothing to carry the heat away from the body. On Earth, we get cold because the air carries heat away from our body.

If he was exposed to direct sunlight, his foot would get badly sunburnt very quickly.

Also, (remember that the boiling point of a liquid is related to pressure), any sweat on the surface of the skin would start to boil.

If your entire body were exposed to a vacuum, holding your breath would be a very bad idea. Holding your breath is likely to damage your lungs, something scuba divers have to watch out for when ascending, and you'll have eardrum trouble if your Eustachian tubes are badly plugged up

This question comes up on NASA's Q&A a lot. Basically, NASA says that if a person is entirely exposed to a vacuum: Theory predicts -- and animal experiments confirm -- that otherwise, exposure to vacuum causes no immediate injury. You do not explode. Your blood does not boil. You do not freeze. You do not instantly lose consciousness.

comparable way that they have got been given there. The spaceship makes a vertical take-off by utilising being positioned on finished ability, till finally it exceeds the get away velocity needed for the Moon (that's only a fragment of that needed for the earth, because of the fact the Moon has lots decrease gravity than the earth, so no longer having the main effective, greater effective rocket with which they left earth - which develop into jettisoned - from now on, isn't a drawback), All that could be needed is adequate velocity to dock with an orbiting craft and climb aboard it, and the return journey appropriate starts from moon orbit. no longer from the moon's floor, in the 1969 holiday Armstrong and Aldrin went all the way down to the Moon in a smaller landing craft on a similar time as Collins stayed in orbit in the command module. get away velocity of the Earth = 11.186 kilometres/2d get away velocity of the Moon = 2.38 kilometres/2d

The moon has so little atmosphere that you might as well be in a vacuum.

It takes much longer to freeze anything in a vacuum than in air, because there is no way for heat to be conducted away from something.

I am not sure that a person could freeze to death in one minute in partial exposure to a vacuum, but even if he didn't die he might suffer serious frostbite.

The greater danger in vacuum exposure is asphyxiation; without air you can't breathe. However, some people can hold their breath for longer than a minute.

just imagine it like this

get a crane and lift up a pickup truck 100 feet in the air

now go stand under it

and have the crane drop it on you

you might die

thats what happens in space, lots of pressure, the suits equalize the pressure so you dont get crushed by pressure or your eyeballs getting sucked into space

Don't worry, he'd die of vacuum exposure and suffocate long before he had a chance to freeze to death.

You did not mention which leg. See, when you ask such important questions which could mean the difference between life and death, you should give all the necessary details.

I expect it would be the right boot, Does that help

he is 100% sure to die,because our body cells are not build for the pressure on the moon

probally freeze ir suffer severe frostbite.