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Learn how gears can easily reduce
or increase speed, change Force, or transfer motion from one
position to another. Build 6 working models, a gearbox, a hand
drill, an egg beater, a helicopter, a rotating sign post and
a high speed fan. A 36 page activity book is included with
innovative experiments and detailed explanation of the different
technological principles applied! Booklet with detailed building
instructions also included. |
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