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Reference
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Gives general defintions, background and examples from the science fields of biology, physics, chemistry, math, and history.
http://www.beta-theta.com/
PageRank: 5/10
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Listing added: Nov 19, 2008)
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A weekly, scientific reference mailing service.
http://www.refscout.com/
PageRank: 5/10
(
Listing added: Nov 19, 2008)
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The uplift water-wheel uses both the upward hydrostatic pressure effecting on withdrawable floats and also the water weight gravitation force and disconnected floats. More informations on Unusual-Water-Wheel.eu.
http://www.unusual-water-wheel.eu/
PageRank: 0/10
(
Listing added: Sep 3, 2009)
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