We have become accustomed to wireless chargers that use a phenomenon called electromagnetic induction to power nearby mobile devices. However, the range is very low, and it is usually necessary to place the device directly above the charging coil. But now, researchers at the University of Tokyo and their colleagues have built a model living room that can wirelessly power lights, fans, smartphones and other electronic devices.

The wall of the room is made of conductive aluminum plates, which, like the enlarged version of a wireless smart phone charger, generates a three-dimensional magnetic field inside. No, it won't shock you.

"We are not saying in general that this technology is safe for all uses-we are still exploring," said research co-author Alanson Sample, an associate professor in the Department of Electrical Engineering and Computer Science at the University of Michigan. "But this gives us some confidence... We still have many places that can be far below this power threshold, where we can still charge our phones as easily as walking into a room without worrying about these safety issues."

In addition to mobile phones, Sample also suggests a dedicated wireless charging room that allows various electronic devices-sensors, mobile robots and even medical implants-to run in the background and charge themselves without a wired connection, allowing humans Ignore them to a large extent. This technique can also be applied to more professional situations. "I can imagine this is very useful for highly instrumented and expensive spaces, such as operating rooms," Smith said. "You can imagine where you can imagine all kinds of instruments and devices that can be powered without wires."

DogPhone, who dis? Ilyena Hirskyj-Douglas, a computer scientist at the University of Glasgow, specializes in the interaction between animals and computers. Her Labrador Retriever Zack and her colleagues developed a videophone system for dogs. It consists of a ball containing a motion-sensitive switch and a radio. When the dog shakes the ball, it triggers a nearby laptop to initiate a call. And... read the rest

Technologist Fran Blanche restored this 16-minute, 16-mm film about lasers. After watching it, I finally got a basic understanding of how lasers work. The video was produced in 1968 by Handel Pictures with the assistance of the Army Image Center, the American Atomic Energy Commission, the Hughes Aircraft Company, and the American Telephone Company, and... read the rest

Although many people use 3D printers to eject useless gadgets, this person demonstrates the practical utility of this advanced technology. I am surprised that these HDMI to garden hose adapters are not easy to buy, but I congratulate maddy_deee for his creative spirit and originality. This is a video presentation of this extraordinary innovation: (Thanks, Lux Sparks-Pescovitz!) Read the rest

We thank our sponsors for making this content possible; it is not written by the editors and does not necessarily reflect their views. In total, we spend 6 billion hours watching Netflix every month. It is true that the streaming giant has some success, but when you want to be a star, there are other places to turn to... read the rest

We thank our sponsors for making this content possible; it is not written by the editors and does not necessarily reflect their views. For most of the last year, people felt trapped in their own homes. The easiest way is to develop a new hobby... read the rest

We thank our sponsors for making this content possible; it is not written by the editors and does not necessarily reflect their views. Anyone who owns a mobile phone charger or any other charger with a small cord for earphones or similar devices knows how quickly they wear out. Not only that, but... read the rest

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