Crazy Engineering !!!!!!

Can we turn the standard LCD monitor into a touch screen with a bit of effort?????

                                              Source : extremetech.com

click to watch video   

The above line seems to be ridiculous because the LCD and touch screens work on two different principles. But nothing is impossible in the world where these  crazy engineers turn impossible tasks possible. Same is the case with the above line also. 
    Researchers at the University of Washington’s aptly named Ubiquitous Computing Lab can turn any LCD monitor in your house into a touchscreen, with nothing more than a $5 sensor that plugs into the wall and some intelligent software. They named the technology as UTOUCH  which works by the Electromagnetic interference(EMI) caused by your hand when it moves near or touches an LCD monitor.