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Discover the history of batteries and how scientists and engineers figured out ways to store electricity.

Did you know that trees, buildings, and even people can act as conductors for electricity? Or have you ever wondered why we're warned not to go outside during a thunderstorm? Scientists, engineers, and electricians use conductors in their work and research, but conductors are also found in many of the devices and tools we use every day.

Have you ever seen lights turn on automatically when you step into a restroom? Or have you ever wondered how a garage door knows not to close when someone is standing beneath it? What these and countless other electronic devices have in common is a sensor.