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Make it Work! Machines
Make it Work Machines
Author: David Glover
Why do bicycles have gears? What makes a pendulum swing? How do pulleys make heavy loads lighter? Build some machines of your own and discover what makes them work -- from a popcorn dispenser and a drawing enlarger to a marble-operated clock and a real rocket!
ISBN-13: 9780590205870
ISBN-10: 0590205870
Publication Date: 1994
Pages: 48
Rating:
  • Currently 3.3/5 Stars.
 2
3.3 stars, based on 2 ratings
Publisher: Scholastic
Book Type: Paperback
Members Wishing: 0
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