6 Brilliant Tesla Inventions That Never Got Built
“It seems that I have always been ahead of my time,” Serbian-American engineer and physicist Nikola Tesla once mused. While the eccentric inventor pioneered advances in radio, television, motors, robotics and electricity—including the alternating-current technology that’s widely used today—he also proposed more outlandish ideas. The following six futuristic visions of his have yet to come to fruition, either because of limitations of technology or market viability. 1. Earthquake Machine In 1893, Tesla patented a steam-powered mechanical oscillator that would vibrate up and down at high speeds to generate electricity. Years after patenting his invention he told reporters that one day while attempting to tune his mechanical oscillator to the vibration of the building housing his New York City laboratory, he caused the ground to shake. During the test, Tesla continuously turned up the power and heard cracking sounds. “Suddenly,” he recalled, “all the heavy machinery in the place was flyin...