Name: ワイヤーなしであなたの家全体に電力を供給! (Power Your Entire Home Without Wires!)
Uploaded: 2021-01-14T05:18:27.000Z
Duration: 3 min 28 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

This episode of DNews is proudly brought to you by Subaru.

BY TESLA WE'VE GOT IT! Wireless electricity might be coming to a home near you... y'know.

Greetings programs, Trace here for DNews. In 1897, Nikola Tesla — asexual genius and

inventor extraordinaire — wanted to QUOTE "turn the whole world into a giant wireless

dynamo." He was awarded a patent in 1907 for wireless electricity but then the Great War

began and the whole thing was lost to history.

Now, over a century later, researchers at MIT created wireless power transmission which

could realize his dream! Sort of. While Tesla was trying to power cities, this transmits

wireless power around your house! Your phone, car, television, laptop, game console, controllers,

remotes, toaster and every lightbulb in every frickin' lamp could all be powered by magnetic

The Faraday Law of Induction describes how an electromagnet creates a magnetic field.

When an electrified coil of wire is wrapped around a metal rod, the metal magnetizes.

Similarly, when you pass a magnet THROUGH an unpowered coil of wire, the magnet creates

Researchers at MIT found a way to turn simple physics into a wireless way to transmit electricity

using a similar technology to WiFi. By plugging in a resonator to the alternating current

outlet in your wall, the device creates a magnetic oscillation. The magnetic field of

the resonator is large enough to mingle with nearby coils installed in the walls and floors

of your house — and ultimately into every device and BOOM wireless power. One magnetic

coil influences another and another all over the house. It's like the barking chain in

MIT spun off the technology into a funny named company called WiTricity. The system can already

power televisions, cell phones and keep their special AA batteries fully charged all at

To be honest, induction charging has been around for a while, as has wireless power

transmission. Radio waves are wireless power, the pads you can buy to charge your cell phone,

mouse or game controllers use wireless power, but this is a bit different. The ones we have

now use near-field induction and this blows it into a whole new proportion.

The problem with any of these systems, is the efficiency. Magnetic fields have to be

relatively close-by to pick up other magnetic fields. The MIT researchers were able to power

one 60 watt light bulb from 2 meters away — but it was only 45% efficient. So they

put in 133 watts to power a 60 watt bulb. Not awesome; though according to the researchers,

this system is 1 million times more efficient than the ones already on the market... and

the CEO of WiTricity says it's 1,000 times more efficient than a battery!

This works with both OLD and NEW technology. Just because it's old doesn't mean it's not

awesome. Just ask Tekzilla's Patrick Norton - Pat customized 3 high-mileage Subaru cars

for 3 charity-minded owners, so they can keep doin' their thing & helping the world. Check

out Pat's handy work on the Second Chance Subaru series at revision3.com/subaru. If

you want wireless power in YOUR house, click Like and tell us what you'd use it for down