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Battery Science: Make Widgets That Work and Gadgets That Go
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Battery Science: Make Widgets That Work and Gadgets That Go List Price: $19.95
Our Price: $13.57
You Save: $6.38

Features
• C-cell alkaline battery
• Battery canister
• Motor and pulley
• Three-blade propeller
• Light bulb
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Battery Science: Make Widgets That Work and Gadgets That Go Customer Reviews
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♥♥♥♥♥ This book is great!
I got this book for my 11th birthday and I absolutely love it. My friend and I spent an entire day building many of the projects. The submersible worked well, but I had trouble getting the hovercraft to lift off. It's also possible to make your own designs work well. It's cool that they included a motor with gills so it can go under water.
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