Benjamin Franklin experimented with electricity on fowl. Portrait of Benjamin Franklin by Joseph Duplessis, courtesy of The Library of Congress In 1751 Benjamin Franklin planned an electrical ...

"Originally published in ... Popular mechanics ... For the average boy, with few tools, and a desire to learn the principles underlying the construction of the more common electrical ...

THE inclosed letter gives an account of an experiment in which an electric current appears to be produced by the direct action of gravity, a result which, if clearly established, would be new and of ...

Bits of material levitating against gravity, a stream of water deflected by invisible means, sparks of light appearing out of thin air; with observations like those, it’s a wonder that the early ...