Andrew Masek's big idea means walking the dog could also be a chance to charge your battery. The 12-year-old's Power Paws device landed him in the finals of the Discovery Education 3M Young Scientist Challenge. It's designed to charge a battery and power lights based off the movement of a dog.

Pooch-Powered Battery

Andrew Masek's big idea means walking the dog could also be a chance to charge your battery. The 12-year-old's Power Paws device landed him in the finals of the Discovery Education 3M Young Scientist Challenge. It's designed to charge a battery and power lights based off the movement of a dog.

Enter the Challenge
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