Some ideas heralded as futuristic are actually more than 100 years old.
In 1833, long before modern consumers were charging their mobile phones and toothbrushes wirelessly, Michael Faraday was experimenting with the physics of inductive charging. And in the first decade of the 20th century, mercurial Serbian-American inventor Nikola Tesla dreamed of powering the world's industries wirelessly from a giant tower on Long Island.
The two innovators are so revered today that modern electric-car companies are named after them: Faraday Future and Tesla Motors.