Mark Twain & Nikola Tesla The high-voltage frequency current is being passed through the human body to bring the lamp to incandescence. Tesla's friend, Mark Twain is holding the loop above the resonating coil. Tesla is in the background.
Mark Twain in the lab of Nikola Tesla, spring of Originally published as part of an article by T. Martin called “Tesla’s Oscillator and Other Inventions” that appeared in the Century Magazine (April Author unknown
Nikola Tesla July 1856 – 7 January was a Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist best known for his contributions to the design of the modern alternating current (AC) electrical supply system.