Nikola Tesla was a genius way ahead of his time—some of his inventions were so powerful or strange, they never got built. From wireless energy towers to earthquake machines, these ideas are the stuff ...

Nikola Tesla's obsession with wireless technology led to several inventions and theories that focused on transmitting data without wires. Tesla’s prediction of transmitting data without wires ...

“There were a lot of fairly eccentric designs in the patents from this era,” says ... tilt-rotor/tilt-wing helicopter-airplane that Nikola Tesla dreamed up in 1921—until this summer, on ...