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HeatherS

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HeatherS

Heat Pumps

An electricallu-powered heat pump can deliver more energy than it draws from the power line without violating the Principle of Energy Conservation. How does this happen?
01:18 Sat 17th Sep 20052 answers, last by Space 09:59 Tue 20th Sep 2005
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HeatherS

Christopher Columbus

I am researching Christopher Columbus and how he named the Virgin Islands, I would like to find out why he named them after St. Ursula if she died in 383B.C and he did not discover the Islands until...
02:12 Wed 14th Sep 20051 answer, last by Clanad 02:32 Wed 14th Sep 2005

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