when the ancient Greeks studied electricity what happened when a piece of amber that had been rubbed with fur was placed near a feather

600 BC - Electric Charge

Explanation:

As early as 600 BC the Greek philosopher, Aristophanes was aware of its peculiar property: when rubbed with a piece of fur, amber develops the ability to attract small pieces of material such as feathers. For centuries this strange, inexplicable property was thought to be unique to amber.

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it is the code of hammurabi