What's Your (Electrical) Sign? - Tech Learning

What's Your (Electrical) Sign?

Using drinking straws and plastic tape, learn how to quickly build an electroscope, a device that detects electrical charge. Depending on how its handled, the plastic tape becomes either positively or negatively charged. Objects with the same charge repel each
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Using drinking straws and plastic tape, learn how to quickly build an electroscope, a device that detects electrical charge. Depending on how its handled, the plastic tape becomes either positively or negatively charged. Objects with the same charge repel each other; objects with like charges attract each other. Introduce a plastic comb into the mix and watch what happens.

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