Top Leaderboard Advert

Mwanakwerekwe shops ad


Zanzibar Diaspora

High class shops @ Fuoni

High class shops @ Fuoni

Scrolling news

************ KARIBUNI..................Contact us for any breaking news or for any information at: You can also fax us at: 1.801.289.7713......................KARIBUNI

Adsense Marquee

Monday, July 31, 2017

Researchers Create Battery-Free Cellphone!

Image result for cellphone images

Researchers from the University of Washington have made what they believe to be the first cellphone that doesn't require a battery. Instead of drawing power from a battery, the rudimentary proof-of-concepts harvest the necessary 3.5 microwatts of power from light using tiny solar cells, or from ambient radio signals.

Made of commercial, off-the-shelf (COTS) components, the phone works by placing calls through Skype. To make a call, the user enters the number and the phone transmits the information to a base station. The base station places the call via Skype, and the phone receives the signal and plays the audio through earbuds. The base is also responsible for supplying the ambient power, as long as it's less than 31 feet away, that the cellphone uses to harvest energy.
Why hasn't this been done before? Because, until now, designers haven't been able to convert sound into digital data that the phone can understand without chewing up too much power.
These researchers are using the tiny vibrations in a phone's microphone and speaker to transmit speech in a way that uses almost no power.
The team of electrical engineers and computer scientists are now trying to improve the phone's operating range and make these conversations more secure. They are even trying to transmit video calls using E-ink screens.

1 comment :

  1. Hi

    [video] Dead Simple Trick Brings Any Battery Back To Life

    There’s a new way to bring nearly any type of old battery back to life it’s just like new again.

    This method works with nearly every type of battery out there ...and it’s simple and quick.

    >> Click here to learn this secret battery reconditioning method <<

    In case you’re wondering, you’ll be able to bring car, phone, and laptop batteries back to life with this.

    It even works with solar/off-grid, marine, golf cart, and forklift batteries. Plus, many more!

    >> Click here to learn how to bring your dead batteries back to life again <<

    With this recondition battery secret, you won’t have to buy new expensive batteries anymore. You can just recondition your old, used batteries and save a lot of money!

    And this new video presentation shows you how:

    Best regards,
    Kevin Day