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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 energy transmission ( WET ), or electromagnetic power transfer is the transmission of electrical energy without wires ...
Speakers, 3.5mm headphone Jack USB 2.0 Mini-B port (data transfer only), SD card, 3.5 mm headphone jack, charging port Keyboard, Scrollwheel Amazon Whispernet 1,530 mAh: 8.0 inches (200 mm) H 5.3 inches (130 mm) W 0.8 inches (20 mm) D 10.2 oz (290 g) No Kindle 2 2 February 23, 2009 $299
Lightning is a proprietary computer bus and power connector, created and designed by Apple Inc.It was introduced on September 12, 2012, in conjunction with the iPhone 5, to replace its predecessor, the 30-pin dock connector.
The body of an American mountaineer has been discovered by a pair of fellow US climbers 22 years after he went missing following an avalanche in the Peruvian Andes. American brothers Ryan Cooper ...
Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...
This is a list of 3D-enabled mobile phones. The devices on this list typically use autostereoscopic displays. Some devices may use other kinds of display technology, like holographic displays or multiscopic displays. Some devices employ eye tracking in aiming the 3D effect to the viewer's eye. Opic Technologies, Inc. offers a 3D smartphone with ...
Smartphone ad hoc networks ( SPANs; also smart phone ad hoc networks) are wireless ad hoc networks that use smartphones. Once embedded with ad hoc networking technology, a group of smartphones in close proximity can together create an ad hoc network. Smart phone ad hoc networks use the existing hardware (primarily Bluetooth and Wi-Fi) in ...
Camera. Leica camera (1950s) Hasselblad 500 C/M with Zeiss lens. A camera is an instrument used to capture and store images and videos, either digitally via an electronic image sensor, or chemically via a light-sensitive material such as photographic film. As a pivotal technology in the fields of photography and videography, cameras have played ...