What did Nikola Tesla do before he died?

Answer 1

Polyphase Alternating Current.................1883

Earthquake Machine ...............................1887

Radio Technology.....................................1891

Robotics...................................................1893

X-ray Technology .....................................1894

Broadcast Power ......................................1900

Electromagnetic Pulse..............................1901

Radar Technology ....................................1915

Particle Beam Weaponry ..........................1917

Death Ray................................................1943

Answer 2

Before Nikola Tesla died, he continued to work on new inventions and ideas related to wireless electricity transmission and renewable energy. He also filed patent applications and continued to conduct experiments at his laboratory in New York. Tesla remained active in his field until his death in 1943.