This is a great toy and a lot of fun! At the same time shows how solar energy can be used to generate electricity Illustrates how radiant energy from the sun can be transformed to electrical energy with a PV cell A motor inside the grasshopper transforms electrical energy to motion Functions best very close to a non-florescent light bulb or in direct sunlight An attention-grabbing display piece related to solar power for a science fair project, class discussion, or just out-of-the-ordinary play Ages 10+.
Works great in full sun, not much in clouds, and works okay under a 100W light bulb. To activate it, one must put it under direct sunlight. Once the solar panel receives the light to generate enough current, the tiny motor underneath it turns an unbalanced flyweight similar to the vibrator in a cell phone, causing the whole thing to vibrate.
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