Nikola Tesla Quotes
With a different form of wireless instrument devised by me some years ago it was found practicable to locate a body of metallic ore below the ground, and it seems that a submarine could be similarly detected.
Citations
Tesla, Nikola. "Tesla's Views on Electricity and the War." The Electrical Experimenter, vol. 5, no. 4, Aug. 1917, p. 270.
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Nikola Tesla was a Serbian-American inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system.