Text: "Nikola Tesla's plan to keep 'wireless thumb' on ships at sea." Use of three transmitters positioned around the earth would make it possible to pin-point exact position a ship using standing wave principle. Reports of use of ultra-violet and infrared rays for use at a distance are not considered practical. New York Press. Nov. 9, 1913. col. 1-6.

See Also: Nikola Tesla, radio location.

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