"The subject of electric oscillation announced in a remarkable paper of Henry in 1842 and threshed out in its main fea…"

"Based on Faraday's earlier work, Maxwell stressed the notion of fields, in contrast to Newton's emphasis on the direc…"

"William Gilbert published a famous book on the magnet in 1600 and laid himself open to the gibes of Sir Francis Bacon…"

"Classical mechanics has been developed continuously from the time of Newton and applied to an ever-widening range of …"

"We shall therefore assume the complete physical equivalence of a gravitational field and a corresponding acceleration…"

"If de Sitter's solution were valid everywhere, then it would be thereby shown that the purpose which I pursued with t…"

"If the idea of physical reality had ceased to be purely atomic, it still remained for the time being purely mechanist…"

"I just want to explain what I mean when I say that we should try to hold on to physical reality. We are … all aware o…"

"What led me more or less directly to the special theory of relativity was the conviction that the electromotive force…"

"He was little interested mathematics or theory; for example, when his ideas on magnetic fields were extensively devel…"