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This is simply amazing technology, just watch the video below.

We have seen Wireless charging solutions like Palm Pre Touchstone and eCoupled, both of which requires devices (power provider and the device being charged) to be in physical contact with each other to transfer electricity which is not exactly the picture which comes to one's mind when hearing the term "Wireless Charging".

Cota is the name of brand new revolutionary technology which will deliver the expected behaviour of a real "wireless charging" solution, Cota can transmit electricity wirelessly at up to 30 feets and that to focussed at a particular device using radiation safe as WiFi signals. The Cota technology consists of a charger and a receiver, the inherently safe technology can deliver wireless electrical power up to from a central transmitter to multiple devices. Receivers will be built into devices or batteries which will get automatically charged, imagine the utility where you can simply buy a Cota enabled standard battery, inset into your device and forget getting bugged about charging/replacing them. Do watch the video demonstration shared below to see this in action.

When it comes to perfect backup's, RAW disk-images are the choice for safest form of backup and restoration of fully functional operating-system installations. We have shared two methods of using the same to backup Raspberry Pi SD Card from Windows as well as Hot Backup's from RPi itself using Linux DD disk imaging utility. Once created we can also Mount these backup images with full read-write access for various tasks like Data recovery (For example imaging an corrupted disk and accessing the disk-image from another working computer to recover data).

OSFMount is a free Windows utility which allows you to do that, the software enables users to mount local disk image files in Windows with a drive letter which can be accessed like any other partition. The images can be mounted in read-only mode as well as write-enabled mode, OSFMount also supports creation of RAM disks (See What are RAM Disks and How they can be used to make use of non-addressable wasted RAM on Windows) which offers a huge speed boost over using disk-based images.