Would be better if it charged something like a battery even trickle charge rather than power a tiny pointless light but I suppose it's not supposed to be taught to be practical.
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8% of people buy 4M: Green Science Build Your Own Wind Turbine and 4M: Science Crystal Growing.
Buy together: $31.67
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Would be better if it charged something like a battery even trickle charge rather than power a tiny pointless light but I suppose it's not supposed to be taught to be practical.
Watch this wind turbine capture the winds energy and turn it into a light, the kit will teach you how this vital renewable energy technology works, the blade span is 34cm with built. Contains every to make the turbine except soda bottle and screwdriver which owner must supply.
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