Thread: Irish physics
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Old 2011-01-10, 02:53   #5
davieddy
 
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"Lucan"
Dec 2006
England

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Quote:
Originally Posted by davar55 View Post
A pipe burst due to inclement weather.
Way back in my physics teaching days, we used to do
an experiment with an expendable iron tube.

We filled it with water, sealed it with a well-fitting screw,
froze the fucker and eventually saw what happened.

Don't remember waiting to see what happened when the
shooting match thawed out.

My favourite demonstration experiment was convection:
two tubes in a box. Candle lit under one of them.
Hot air rises.
To prove that dragged air down the other tube, a source
of smoke was required....

David
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