Tesla - Inventor of the Modern World Documentary
"Electromagnetic waves and receivers" @ 37:15
"Cosmic Rays" @ 51:53"
"The claims he invented an electric car are usually related to a story about a ‘black box’ powering the motor with free cosmic energy."
https://cosmosmagazine.com/technology/did-nikola-tesla-build-a-revolutionary-electric-car/
"Electromagnetic (EM) waves which Tesla declared is a free source of power that is “everywhere present in unlimited quantities”."
https://www.apparentlyapparel.com/news/nikola-teslas-black-magic-wireless-touring-car
"Our Sun emits electromagnetic energy and that energy showers down on us throughout the whole 24 hours, and if a energy receiving device (an antenna) can easily be built to harness and use this power"
"Tesla amplified the very weak radio wave signal and produced a very high voltage output. Enough to power the 80 HP AC electric motor"
https://www.apparentlyapparel.com/news/nikola-teslas-wireless-electric-automobile-explained
"The box had an antenna sticking out. Tesla would fool with some tuners and tune in the right frequency and got 240 volts delivered through the air"
""The "energy receiver" (gravitational energy converter) had been built by Tesla himself"
http://waterpoweredcar.com/teslascar.html