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"If hot air rises..."

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Tue 22/07/03 at 17:02
Regular
Posts: 787
Why does it get colder at higher altitudes?
Thu 24/07/03 at 11:52
Regular
Posts: 15,681
As the heated air molecules rise, they 'burn' energy. When that energy is burnt out, the air molecules fall again, where they are re-energised and rise, to then burn off that energy and fall.

Simple.

That's why the air is thinner nearer the edge of the planet's atmosphere. The molecules are closer to the emptiness of space where there is very little energy (and heat), and so the gravity pulls them back down to rise again.
Wed 23/07/03 at 20:57
Regular
"Chavez, just hush.."
Posts: 11,080
Oh well....

DISCLAIMER: Phillip does not take any responsibility for any freezers that are broken in the testing of the listed experiment. It is the full responsibility of the user to make sure that their freezer is 'hot water proof.'
Wed 23/07/03 at 15:42
"High polygon count"
Posts: 15,624
phi11ip wrote:
> If you put hot water in a freezer and room temperature water in a
> freezer.

You'll ruin your freezer!

Not supposed to put anything hot in a household freezer, as far as I know.
Wed 23/07/03 at 15:11
Regular
"Chavez, just hush.."
Posts: 11,080
Clazon wrote:
> the kettle thing is because hotter heat cools down quicker and then
> slows down.

If you put hot water in a freezer and room temperature water in a freezer.

The hot water will freeze first!
Wed 23/07/03 at 14:54
Regular
Posts: 5,323
Hot Air rises until it gets to a certain height, then it condenses and turns into a cloud where it becomes heavier and begins to fall and then it rains. Then the rain droplets evapourate and everything starts again.
Tue 22/07/03 at 19:26
Regular
"The Red Shift"
Posts: 6,807
the kettle thing is because hotter heat cools down quicker and then slows down.
Tue 22/07/03 at 19:05
"period drama"
Posts: 19,792
Ouch!
I burnded meself
Tue 22/07/03 at 18:53
Regular
"+34 Intellect"
Posts: 21,334
phi11ip wrote:
> cookie monster wrote:
> And also if you put your hand above the spout of a boiling kettle,
> you
> will find you dont need to move your hand very far up before the hot
> air becomes much cooler.
>
> And if you put your hand too close. You'll scould (sp) youself...

Of course, but nobody is that stupid.
Tue 22/07/03 at 18:48
Regular
"Chavez, just hush.."
Posts: 11,080
cookie monster wrote:
> And also if you put your hand above the spout of a boiling kettle, you
> will find you dont need to move your hand very far up before the hot
> air becomes much cooler.

And if you put your hand too close. You'll scould (sp) youself...
Tue 22/07/03 at 18:38
Regular
"+34 Intellect"
Posts: 21,334
And also if you put your hand above the spout of a boiling kettle, you will find you dont need to move your hand very far up before the hot air becomes much cooler.

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