Wireless Electricity

Today we watched a video in class. It was about wireless electricity and how it works. WiTricity was invented by MIT Physicists. They wanted to invent this because they didn't want to have to use batteries or constantly plug things in. They wanted to be able to charge things wirelessly.

How Witricity works is you have part of a coil and you plug it in anywhere, then you have the other half on something else and when it gets close enough it will charge it or turn it on. When you have on of these coils plugged in it can be used to charge more than one thing. It can turn a TV on and charge a cellphone at the same time. If you owned an electric car then you would be able to drive into your garage and onto a mat and it would charge, without you having to deal with plugging it in. The coils use a non-radioactive power transfer. They pass through magnetic fields, so it is completely safe for animals and people. WiTricity is made possible because of Resonance. Resonance is the efficient energy exchange between tuned resonant objects. Resonance has very little energy transferred extraneous or of resonant objects.

Many people will buy this product once it is sold. It is a good investment because you will never have to worry about charging anything. Once you walk into your house your cellphone will charge and you wont have to plug it in. In the future i predict that you will be able to find WiTricity in households all over the world.