Spinning Blackboard and Other Dynamic Experiments on Force and Motion

Don Rathjen

Paul, Doherty

San Val

<p>Complete plans for making marvelous moving machines out of the special Legos that come with the book and some basic pieces you've already got at home.</p>

Lego Crazy Action Contraptions: A LEGO Inventions Book (Klutz)

Children's Books

Activities, Crafts & Games

Klutz

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Books by Don Rathjen