|Project by revwarguy||posted 03-14-2013 08:33 PM||4646 views||20 times favorited||29 comments|
Here is an Orrery (a mechanical model of the solar system). You turn the crank a full rotation and the earth moves one season, and all the other planets move in the correct relation to their orbits. Four turns and the earth moves one year.
Fun project and sparks some fun conversation when company visits.
More at www.liming.org/orrery if you are curious.
-- "72.6 per cent of all statistics are made up on the spot." - Steven Wright