Have you ever heard of a Perpetual Motion Machine? More to the point, have you ever heard of why Perpetual Motion Machines are impossible? One of the reasons is because of the first law of thermodynamics!
One of the greatest inventions is the steam engine. But why?
Moving on to our unit on the Physics of Electricity, it's time to talk about charge.
As we learn more about electricity, we have to talk about fields.
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