Eureka!: C-E

Eureka!: C-E

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Presents over 600 entries describing inventions and scientific discoveries and the people responsible for them.spring was joined with a mainspring-driven clock to create a precise and completely portable watch, suitable for ships as well as a persona#39;s wrist. ... These early battery clocks used tiny motors to wind the mainspring when it ran down. The realanbsp;...

Title:Eureka!: C-E
Author:Linda Schmittroth, Mary Reilly McCall, Bridget Travers
Publisher:Gale Cengage - 1995


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