Phisherman wrote:
On Thu, 22 Feb 2007 09:48:22 -0800, "Bill"
wrote:

I've always wondered about this....

When I turn on the hot water, cold water comes out at first, then the hot
water gets to the faucet after a bit. When the hot water arrives, the faucet
makes a different sound!

Why is this?



Hot water moves much faster than cold water. It's similar to blowing
through a tube; blow harder and the sound changes.

Take a plastic jug and put a small hole near the bottom. Fill it with
hot water and note the stream. Do the same with cold water. It is
amazing to see the difference. You can record the time it takes to
empty for comparison. There is more (kinetic) energy in the warmer
water.

I am going to try that:-))

Lou