Tired of a Household Chore, This 13-Year-Old Built a $25 Solar Tracker That Boosts Output by 20% — Without Using Electricity
· zmescience.com · popularity 21/100 · 0 similar stories today · Family & Parenting (Lifestyle & Culture)
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Summary
Most solar panels stand still while the sun moves. But a Massachusetts seventh grader fixed the problem with a low-cost solution and gravity.
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