HANDS-ON LEARNING: Ruby Dufour, 3 of Winthrop, holds a photovoltaic cell to a light bulb that powers the spinning fan in her other hand Wednesday morning at the Maine Energy Education booth during the Earth Science Day at the Maine State Museum in Augusta. About 1,000 visitors checked out the 15 displays, such as gold panning and exploring how to quarry granite.
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HANDS-ON LEARNING: Ruby Dufour, 3 of Winthrop, holds a photovoltaic cell to a light bulb that powers the spinning fan in her other hand Wednesday morning at the Maine Energy Education booth during the Earth Science Day at the Maine State Museum in Augusta. About 1,000 visitors checked out the 15 displays, such as gold panning and exploring how to quarry granite. Staff photo by Joe Phelan
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