Gravity variations over Earth much bigger than previously thought [http://www.sciencedaily.com/releases/2013/09/130904105345.htm] - 2013-09-11 04:55:08 - public:time freefall, gravity, physics, ssa - 4 | id:1994 - Whoa....Heavy.
This Rocks! [http://www.youtube.com/watch?v=8wWuH7MIeCA&feature=player_embedded] - 2013-09-01 06:00:12 - public:time freefall, gravity, physics, ssa, video - 5 | id:2013 -
Neil Fraser: Hardware: Lava Lamp Centrifuge [http://neil.fraser.name/hardware/centrifuge/] - 2010-03-03 20:53:46 - public:time centrifuge, diy, gravity, lamp, physics - 5 | id:3402 -