Summary

Tired of moving solar-powered Christmas lights, a seventh grader built a tracker that lets gravity do the work. Jason Chang was sick of his mother asking him to adjust the family's solar-powered Christmas lights to get more sun, so he devised a solution with big potential. The 13-year-old seventh grader at Worcester Academy in Massachusetts created a solar tracker that utilizes water and gravity to move a solar panel without the need for a motor , a sunlight sensor or electricity to power the mechanism.

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