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| Keywords: TeslaWirelessIllustration.png Experiment in wireless power transmission by inventor Nikola Tesla at his Colorado Springs USA laboratory around 1899 The light glowing near the bottom is powered by energy transmitted wirelessly from the huge 20 megavolt magnifying transmitter in his lab nearby The grounded receiver coil shown is tuned to resonance with the transmitter coil and the lamp is powered by three turns of wire inductively coupled to the coil at bottom The Century magazine article containing this picture does not say how far away the transmitter is Information from http //books google com/books id KRg9HWakBmQC pg PA96 Leland I Anderson Ed 2002 Nikola Tesla on His Work with Alternating Currents and Their Application to Wireless Telegraphy Telephony and Transmission of Power An Extended Interview 21st Century Books p 97<br/><br/> Caption Fig 4 EXPERIMENT TO ILLUSTRATE THE TRANSMISSION OF ELECTRICAL ENERGY THROUGH THE EARTH WITHOUT WIRE The coil shown in the photograph has its lower end or terminal connected to the ground and is exactly attuned to the vibrations of a distant electrical oscillator The lamp lighted is in an independent wire loop energized by induction from the coil excited by the electrical vibrations transmitted to it through the ground from the oscillator which is worked only to five per cent of its full capacity Downloaded from http //peswiki com/index php/Image TeslaWirelessIllustration png First published in Nikola Tesla http //www tfcbooks com/tesla/1900-06-00 htm The Problem of Increasing Human Energy Century Magazine The Century Co New York June 1900 fig 4 Also appears in Nikola Tesla Aleksandar Marinčić 1978 http //books google com/books id nNtSAAAAMAAJ Colorado Springs Notes 1899-1900 Nikola Tesla Museum Beograd Serbia fig 25 1900-12 Photo was taken by Dickenson V Alley photographer at the Century Magazines PD-OLD PD-OLD 1900 in the United States Tesla coils Wireless energy transfer Nikola Tesla Pictures of Tesla's inventions | ||||
