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mbernhar

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mbernhar

Water as frost protection for trees

How does spraying water on flowering trees protect them from freeze damage?
00:25 Wed 01st Aug 20072 answers, last by Mortartube 12:02 Thu 02nd Aug 2007
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mbernhar

Reflections of water viewed from airplane

Sometimes when you look out the airplane window, you see bright flashes of light from the ground, caused by swimming pools, rivers, and puddles. The places where the flashes occur seem to move along...
15:45 Thu 19th Jul 20072 answers, last by mbernhar 17:02 Thu 19th Jul 2007

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