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elleng

(136,074 posts) Fri Oct 3, 2014, 08:13 PM Oct 2014

Second graders tackle ancient technology. Welcome to Pulleys 101!

Did You Know? Archimedes of Syracuse invented the first compound pulleys 287 BC - 212 BC. Plutarch reported that Archimedes moved an entire warship, laden with men, using compound pulleys and his own strength.

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Second graders tackle ancient technology. Welcome to Pulleys 101! (Original Post) elleng Oct 2014 OP
Love it! NYC_SKP Oct 2014 #1
Nice that you shared it, SKP. elleng Oct 2014 #2
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