Gravity Bar by mrigsby 3d model
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Gravity Bar by mrigsby

Gravity Bar by mrigsby

by Thingiverse
Last crawled date: 3 years, 1 month ago
This is a simple test rig (mostly 3d printed) based on a design by John Walker (http://www.fourmilab.ch/gravitation/foobar/ Gravity is a weak attraction between two objects (beyond that, things get pretty speculative). This "gravity bar" is a rod with lead weights on the ends. It is suspended from a ladder using 6 pound test fishing line. A "daggerboard" on the bottom of the rod sits in water to dampen rotation.
On August 12 I added a longer bar (longer bar, extenders and sphere holder)

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