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Wireless Electricity Is Coming, Here’s Where We’re At

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 Environmental   |   Physics   |   Science
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Imagine a world where charging cords don't exist and every device is powered as soon you walk into a room. Well, soon that might be a reality.

Disney Invented A Room Where Your Phone Will Never Die - https://www.youtube.com/watch?v=IWjsXjVc_LE

Read More:
Converting Wi-Fi signals to electricity with new 2-D materials
http://news.mit.edu/2019/converting-wi-fi-signals-electricity-0128
"Another possible application is powering the data communications of implantable medical devices, says co-author Jesús Grajal, a researcher at the Technical University of Madrid. For example, researchers are beginning to develop pills that can be swallowed by patients and stream health data back to a computer for diagnostics."

Design of a Novel Compact and Efficient Rectenna For WiFi
Energy Harvesting
http://www.jpier.org/PIERC/pierc83/05.18012803.pdf
"However, the RF power obtained from the environment is usually at the scale of milli-watts or micro-watts which is a critical problem that limits the popularity of the RF energy harvest. In order to maximize the harvested energy, the rectenna which consists of antenna and rectifier is crucial in the process of energy harvesting"

When will your phone charge wirelessly in your pocket? We asked an expert
https://www.digitaltrends.com/cool-tech/wireless-charging-over-distance-barriers/
We have seen several demonstrations of wireless power over distance technology over the last few years from companies like Energous, Ossia, and TechNovator, and it definitely works. But there are some caveats. Qi wireless charging pads take longer to charge our phones than wired connections, and wireless charging over distance is even slow


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