Nikola Tesla experimenting with currents of high potential and high frequency in his Houston St. lab Image added November 25, 2010 - 2:00 AM
Tesla demonstrates “wireless” power transmission in his Houston Street laboratory in March 1899 Image added November 25, 2010 - 2:00 AM
Tesla holds a highly evacuated, gas-filled tube, powered by one of his high-frequency oscillators Image added November 25, 2010 - 2:00 AM
Tesla holding a gas-filled phosphor-coated wireless light bulb Image added November 25, 2010 - 2:00 AM
Nikola Tesla, with Roger Boskovich's book, “Theoria Philosophiae Naturalis” Image added November 25, 2010 - 2:00 AM
Mark Twain participating with experiment as Tesla watches from behind Image added November 25, 2010 - 2:00 AM
Nikola Tesla in the first photograph ever taken by phosphorescent light Image added November 25, 2010 - 2:00 AM
Mark Twain and Joseph (“Jo”) Jefferson in Tesla's South Fifth Avenue laboratory, 1894 Image added November 25, 2010 - 2:00 AM