How about Maxwell who gave the formulation for all of electromagnetic theory. Einstein's work is based alot on Maxwell. He lived a little before Tesla. Then there is Faraday a half century earlier who showed that the dynamo and electical engine was possible. I am not going to champion Edison but Tesla engineering processes were built upon Faraday's work. There was the work by the American engineer whose name I forget presently that made a killing engineering electromagnetic cranes that lived before Tesla.
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Even a superstitious man has certain inalienable rights. He has a right to harbor and indulge his imbecilities as long as he pleases. . . He has a right to argue for them as eloquently as he can, in season and out of season. He has a right to teach them to his children. But certainly he has no right to be protected against the free criticism of those who do not hold them. He has no right to demand that they be treated as sacred. He has no right to preach them without challenge." -H.L. Mencken
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