get_involved Gold Member Joined Jul 16, 2009 Messages 2,046 Reaction score 437 Points 130 Dec 27, 2012 #1 This is pretty interesting. A Lantern Powered by Gravity | This Could Be Big - Yahoo! News
Freewill Platinum Member Joined Oct 26, 2011 Messages 31,158 Reaction score 5,095 Points 1,130 Dec 27, 2012 #2 How does he make the claim it is powered by gravity? It is powered by muscle power.
Avatar4321 Diamond Member Gold Supporting Member Joined Feb 22, 2004 Messages 82,283 Reaction score 10,151 Points 2,070 Location Minnesota Dec 27, 2012 Moderator #3 not a bad idea. though id have to see it at work.
Lakhota Diamond Member Joined Jul 14, 2011 Messages 181,665 Reaction score 191,350 Points 3,645 Location Native America Dec 27, 2012 #4 Interesting. I hope this isn't another Bigfoot story.
Freewill Platinum Member Joined Oct 26, 2011 Messages 31,158 Reaction score 5,095 Points 1,130 Dec 27, 2012 #5 It is a small light driven by a bag of whatever being pulled down by gravity. The bag gets its potential energy not from gravity but by muscle power. Nothing that interesing except the concept.
It is a small light driven by a bag of whatever being pulled down by gravity. The bag gets its potential energy not from gravity but by muscle power. Nothing that interesing except the concept.
Lakhota Diamond Member Joined Jul 14, 2011 Messages 181,665 Reaction score 191,350 Points 3,645 Location Native America Dec 28, 2012 #6 It still sounds interesting. It beats cranking on a little generator.