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Energy from Natural Resources => Gravity powered devices => Topic started by: iacob alex on May 17, 2016, 09:08:58 AM

Title: Two types of energy...
Post by: iacob alex on May 17, 2016, 09:08:58 AM

.....including gravity , at : www.chemistryland.com/CHM107/Energy/Energy.html
Our problem is the "free access"...
Al_ex

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