Can heat transfer in a vacuum?

Question

say a dude in space started a fire, will he feel it? assuming the suit doesnt block any senses

Answer 1

Yes.

Heat can transfer by radiation, conduction, and convection.

Conduction and convection require media through which to work, but radiation does not require many medium, so it can work in a vacuum.

After all, we feel the sun's heat through 93000000 miles of space.

But you can't start a fire in space.

Answer 2

yes..heat is transferred as an electromagnetic ray(infrared)..since all sources of light have some amount of that radiation about them and such a ray doesnt really need an air or a medium to propagate, he would feel the heat no matter what(unless the fire itself doesnt have an air/oxygen supply to support burning)

Answer 3

No. Heat is molecular kinetic energy. (How fast the molecules are moving.) So in a vacuum, no matter exists, therefore no molecules exist, therefore no heat. I hope this makes sense.

You can't start a fire in space unless there is enough heat, oxygen, and fuel. (So only in a controlled environment in space is it possible to light a fire such as a space station or spaceship.)

Answer 4

Heat can transfer by radiation as it does in space.

Answer 5

heat travels through vaccums by radiation....

and you can start a fire in space....starting a fire doesnt have to mean a campfire!!

if u can start a fission or fusion reaction in space then you will have a fire.... and if you have plenty of the fissile material ,,,the reaction will last longer ... that is what the sun is made of... gases reacting together....

probably if u detonate a very huge nuclear or hydrogen bomb in space... u will get a small temporary sun!!

serach and read about ( Tsar Bomba)

Answer 6

Yes.

according to what the person said above, it isn't felt. but what he is mentioning is thermal energy. thermal energy is the vibration of the molecules. heat is the transfer of this. heat is transferred in three ways: conduction, convection, and radiation. the sun is proof that heat can pass through vaccum; the sun has radiation where it turns to thermal energy once it hits matter