SK ● 3rd - 4th Grade ● Chris
Wednesday, April 3, 2013
How a Differential Gear Works
Because I had no idea and it's fascinating!
via
kottke.org
1 comment:
Anonymous
April 7, 2013 at 8:46 AM
makes me wish I had taken some engineering classes in college, AWESOME stuff! Thanks for sharing
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makes me wish I had taken some engineering classes in college, AWESOME stuff! Thanks for sharing
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