Original Sender : bud <[EMAIL PROTECTED]>
---------------------------------
Halo Compu-Mania,
Heat
Heat is vibration of molecules. Lots of vibration feels hot to
the touch. No vibration feels extremely cold.
Molecules are like teenagers with peer pressure. Blending in
and being accepted is what counts. They like to
vibrate as much as the next guy. They do not like to vibrate
more than the next molecule, and they do not like to
vibrate any less. If all the other molecules jump off of a bridge,
then this molecule will do it too. If a group of
molecules is vibrating like crazy (hot), and they go to school
with some molecules just barely vibrating (cold),
the whole school will, after some time has passed, end up vibrating
half way in between (warm).
What�s the difference between molecules of metal and of air? Metal
molecules only know their immediate
neighbors because they don�t move about. When the neighbors� 2 doors
down vibrates a lot, our molecule
doesn�t do anything different until his next door neighbor met the
other neighbor then came over to "pass it on".
Passing it on one by one is called conduction and there is more later.
Air molecules have the special quality of being free and of moving
upwards as they get hotter. We like this a
lot and we will take advantage of this. Air molecules also vibrate
as heat, but they don�t have permanent
neighbors. They just cruise around bumping into other air molecules,
left and right. But, if they bump into a
madly vibrating (hot) piece of metal, they start vibrating a lot too.
And when this happens, it is time to head
skyward. Up it goes until it bumps into other air molecules,
transferring some of its vibration to the others it
meets until its back to vibrating a little. When this happens it
falls back down to repeat the process all over
again. This air going up and down is called convection.
Best regards,
bud
[EMAIL PROTECTED]
----------------------------------------------------------------
Compu-Mania MailingList is provided by PT Centrin Utama
Maintained by : [EMAIL PROTECTED]
To Post a msg : Send mail to [EMAIL PROTECTED]
To Unsubscribe : Mail to [EMAIL PROTECTED]
BODY : unsubscribe Compu-Mania
For more information, send mail to [EMAIL PROTECTED]
with "HELP" in the BODY of your mail (without quote).
----------------------------------------------------------------
