Showing posts with the label Nokia

Lightning charges Nokia Lumia!

Although it sounds like an advertisement for the mobile company, it is the work of the researchers at the University of Southampton that is creditable. Prompted by the phone company, the researchers attempted to charge a mobile phone using lightning as the source of energy.
Lightning strikes the Earth around 40-50 times per second and each lightning bolt carries anywhere between 1000 - 5000 joules of energy, enough to send a tennis ball at 23,000 km per hour.  While we are aware of the energy potential of lightning, we have never managed to harness this energy because we do not know how to control it (much like Fire was for a man of Stone Age).  Through these efforts, Nokia and The University of Southampton are looking for ways to harness this energy and also charge phones wirelessly. (You can read more about it in our previous post, about wireless charging).
While we might be decades away from harnessing this energy successfully for everyday use, it does make for an interesting vide…

Wireless charging, the future that's already here....

Comments from our readers, regarding the controversial car change in the proposed Formula E racing event, led us to further research about how could we recharge these cars quickly during pit-stops. Turns out, the best way to charge these cars, is not to stop at all. Charge them wirelessly (if that's an acceptable word), when in motion. Even better is the fact, that the technology already exists and is being actively implemented around us.
Wireless charging can be achieved in a variety of ways, but the most effective so far, is when it is accomplished using electromagnets called inductive charging. Here, a charging station uses an induction coil to convert electric energy into an alternating electromagnetic field which the induction coil in the device we wish to charge takes up and converts back into electricity to charge batteries. Nikola Tesla was the inventor of this technology and you can read an interactive take on Tesla's under-advertised achievements in the post on The O…