Nikola Tesla claimed that he could transmit power wirelessly (in 1899), by building a giant coil that would resonate and create a standing-wave pattern on the Earth. He claimed to have succeeded, but offered no real proof and never was able to demonstrate the effect for anyone. He gathered a lot of money and started building a 200 foot Tesla coil on Long Island, but after a few years, he lost backers and went bankrupt.
Tesla was a smart guy. He had a few years of college, which was more education than a lot of "inventors" of that era. You can see in his notes that he understood what an LC tank oscillator was. He was also a little confused about things, and stated that radio really worked by high-frequency conduction through the earth, not by electromagnetic waves.
He has a cult following who range from sensible admirers to total nuts who think he is still alive on the planet Venus, so be cautious when reading about him on the web. But he really was a very interesting scientist.