Electricity Investigations
2017年8月 · Lerner Publications ™
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32
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You probably know that electricity powers your computer and other electronics. But what is electricity? How does it work and where does it come from? Scientists have been asking questions about electricity for centuries. Does it come from frog muscles? Can magnets create electricity? How could people harness the energy from gas or wind to power devices far away? Scientists have asked all these questions and more, and they've conducted countless experiments to learn the answers. Find out what they discovered and how we use electricity to power homes and businesses.
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智能手机和平板电脑
笔记本电脑和台式机
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