Hard/Soft Water
On Thu, 15 Jan 2009 22:33:05 GMT, Tom Francis - SWSports
wrote:
On Thu, 15 Jan 2009 16:48:20 -0500, "D.Duck" wrote:
Concerning the recent crash one of the TV commentators said that it was
better for the airplanes survivability that the water in the Hudson is cold
and not warm. the reason he said is that cold water is *harder* than warm
water and made for better ditching conditions.
Any truth to this.
No - cold water is less dense than warm water.
That's why ice floats.
Exactly wrong. Cold water is heavier than warm water. The warmer the
water gets, the faster the particles move and become farther apart.
Water stratifies with the coldest water on the bottom. Just like air.
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