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2. Wireless power transfer - Wikipedia

   en.wikipedia.org/wiki/Wireless_power_transfer

   Wireless power transfer. Inductive charging pad for a smartphone as an example of near-field wireless transfer. When the phone is set on the pad, a coil in the pad creates a magnetic field [ 1] which induces a current in another coil, in the phone, charging its battery. Wireless power transfer ( WPT ), wireless power transmission, wireless ...

3. Qi (standard) - Wikipedia

   en.wikipedia.org/wiki/Qi_(standard)

   As an example from the 2017 version 1.2.2 of the Qi specification (referenced above), the A2 reference Qi low-power transmitter has a coil of 20 turns (in two layers) in a flat coil, wound on a form with a 19 mm inner diameter and a 40 mm outer diameter, with a below-coil shield of soft iron at least 4 mm larger in diameter which gives an inductance of 24 ± 1 microhenries.

4. World Wireless System - Wikipedia

   en.wikipedia.org/wiki/World_Wireless_System

   The World Wireless System was a turn of the 20th century proposed telecommunications and electrical power delivery system designed by inventor Nikola Tesla based on his theories of using Earth and its atmosphere as electrical conductors. He claimed this system would allow for "the transmission of electric energy without wires" on a global scale ...

5. Resonant inductive coupling - Wikipedia

   en.wikipedia.org/wiki/Resonant_inductive_coupling

   Resonant inductive coupling or magnetic phase synchronous coupling[ 4][ 5] is a phenomenon with inductive coupling in which the coupling becomes stronger when the "secondary" (load-bearing) side of the loosely coupled coil resonates. [ 5] A resonant transformer of this type is often used in analog circuitry as a bandpass filter.

6. FYI, AirPods are the same price they were on Prime Day - AOL

   www.aol.com/lifestyle/fyi-airpods-are-the-same...

   Apple AirPods (2nd Generation) $80 $129 Save $49. This is an outrageous price for AirPods! In fact, it's a record-low price, so if you've been toying with a pair or need to replace your current ...

7. Ray J - Wikipedia

   en.wikipedia.org/wiki/Ray_J

   The show premiered on February 2, 2009. For his show on March 24, 2009, he released the soundtrack/studio album called For the Love of Ray J. On November 2, 2009, the show's second season premiered. In 2010, Norwood and his sister Brandy Norwood premiered the VH1 reality series Brandy & Ray J: A Family Business along with their parents. The ...