Imagine a world where there were no longer power lines obscuring that lovely sunset, where you no longer had to find your phone charger at the end of the night. Imagine a world where power can be given wire free.
Sounds too good to be true, doesn’t it?
Originally, the idea of powering devices wirelessly can be traced back to Nikola Tesla, a scientist whose love for electricity is now of mythic proportions. As ambitious as this sounds, it might not be that far off.
Researchers at the University of Washington have begun experimenting with combining power with wireless signals from routers. What is most interesting is that for the small devices they have been trying (a camera and a fitbit among others) they did not have to do too much modification to the system.
Instead, they saw that the radio frequencies that they were tapping into and changing to DC current where almost strong enough to charge the device, but lacked the stability to successfully do so. By broadcasting on multiple frequencies and with a few software tricks, researchers were able to get the devices to work at several proximities to the wireless router for short.
This however might fry your personal wireless router, but for now it is a step in the right direction. As technology continues to advance, this dream of a wireless future could very quickly become a reality.
Which device are you most excited to see become wireless?