WPT breaks all connections, Part 1: Page 5 of 12

March 16, 2015 //By Sanjaya Maniktala
WPT breaks all connections, Part 1
Sanjaya Maniktala offers the first part of a high-level review of the current state of wireless power transfer (WPT).
around Colorado Springs that fateful day.

Tesla was fully charged up by then. Pretty soon he was planning on delivering, or should we say diverting, kilowatts of energy wirelessly across the Atlantic from a brand-new upcoming tower of power. In 1901 he started to build this 187-ft Wardenclyffe tower in Long Island, New York. A fellow tower was planned for the southern coast of England much later — one of 30 planned receiver towers, of which the Wardenclyffe tower would serve as a hub “city”.  It would become the Constantinople of the 20th century.

The transmitted transatlantic energy was eventually going to not only include data for broadcasting, wireless telecommunications and other purposes, but electrical energy to power entire industries. The fabled “World Wireless System” was taking shape. Its ultimate goal? To provide energy wirelessly for all of Earth’s industries one day in the near future, free of charge to boot, as ordained by Tesla himself. For the initial project, Tesla had managed only a rather small investment from J.P. Morgan — about $3 million by today’s standards. Mr. Morgan may have had some serious doubts about the business model thereafter. And he did make that clear soon.

Looking up Tesla’s well-known wireless power transfer patent dated January 18, 1902, granted in 1914, it seems that Faraday’s Law was to be used once again, to first generate a very high voltage (millions of volts). That would then be used to initiate (unleash) low-frequency longitudinal waves, i.e. atmospheric discharges. The frequencies involved in Tesla’s presumed transatlantic attempt are said to be 150 kHz for the first step, and 8 Hz for the second (yes Hertz, not kilo, Mega or Giga). Tesla had clearly discovered the underlying “principle” behind sending electricity through air, in other words lightning, and also that the earth was a very good electrical conductor with which to “close the circuit” — on account of its extremely high cross-sectional

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