10don MSN
A Worcester 7th grader built a solar invention for under $25. Now he's headed to Washington, D.C.
Jason Chang didn't set out to solve a global energy problem. He just wanted to stop adjusting his family's solar-powered ...
In recent years, there have been some incredible new inventions that use state-of-the-art technology and the latest innovations. However, there have also been some very simple inventions that have ...
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4 simple inventions
4 simple inventions ...
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