Engraving titled Electrical Properties of Lightning

Engraving titled Electrical Properties of Lightning'. Pictured is a kite with projecting copper wires attached to a thin wire string attached to a length of silk with a key or other piece of metal at the end. During an electrical storm sparks will be given off by the key because electricity cannot pass down silk

Cannot Kite Lightning Projecting Properties Sparks String Titled Wires

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