Histoire Books

Up down or open moving machines
Up down or open moving machines

By Michele Spirn

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Discusses how simple machines work using drawbridges, escalators, and retractable roofs as examples.

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The sky's the limit
The sky's the limit

By Stephanie Cohen

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"Airplanes pass over our heads every day. We hardly notice them, but they are an invention that took centuries to perfect. What were the first flights like?"--

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Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden
Gesammelte Schriften in 10 Banden

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