Science a GoGo's Home Page Forums General Discussion Physics Forum Follow the photon! Is this right?

orac

using the Moon and the ISS to attempt to describe the
earth is like comparing the earth to a large hollow tin can
and a solid ball of stone.

neither of which has its own internal heat like the earth does.

the ISS has to be supplied with heat and cooling.

and trying to heat the moon up by giving it an atmosphere
would be like trying to boil water for a cup of coffee
with a cigarette lighter outside in the wind during a
snowstorm at the north pole while standing on your head
and wondering why your doing this.




then explain how a gas gets hot or cold due to an interaction
between gas molecules.

if energy is conserved then how could any interaction
between gas molecules cause any heat without also having
caused a lower total energy in the gas molecules?

so if you know of a way to heat up or cool down gas
molecules by allowing them ( not forcing them ) to collide
with each other then I want to know how.

I have a propane cylinder that I recently filled and it
has a gazillion gas molecules in it and the gas molecules
in the container are all moving around inside the container
but when I touch the container its not hot its cold to the
touch.

you would think that I could heat my home with this container
of gas molecules without ever consuming any of the gas because
of all of the heat that is being ( CREATED ) due to the
gazillion collisions each nano second but thats not the case.

so why isnt the container heating up and heating up my house?



actually a photon never bounces , portions of photons are
always absorbed or reflected.

but I know what your saying.

and that is literally what photons are doing.

they are being absorbed and emitted , never causing a
gain or loss in total energy.

and if the absorption of a photon causes a collision with
other molecules and energy transfers occur between molecules
then there is still no gain or loss in the total energy.