In 1891, Nikola Tesla built a machine that could fire bolts of electricity through the air. His Tesla Coil became a symbol of wireless power—and raw electrical beauty. Arnold Schwarzenegger shares ...

[mircemk] has been working on wireless power transmission. Using a Class-E Tesla coil with 12 turns on the primary and 8 turns on the secondary and a 12 volt input he can send a few milliwatts to ...

Laser bazookas and Tesla coil guns sound like science fiction, but engineers have built versions that really work. These electrifying weapons unleash raw power in ways few thought possible. FBI ...