Instructional Material: LEGO 100+ Gear Calculator Video

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This YouTube Video tells the story of an ancient Greek celestial calculation machine using precision gearing and a Lego implementation of the same device. It uses 1,500 parts and 110 gears to recreate the Greek invention. This is a great supplement to the Advanced Gearing lesson as it shows how the Greeks used compound gearing to do complex math. Thanks to Mac Jones at Reeve's MS in Olympia, WA for this link.

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