According to the American magazine "Discovery", optical researchers at the University of California, Los Angeles have invented the world's fastest camera by using infrared laser to illuminate objects and capturing the reflected light. It can take 6.1 million photos per second with a shutter speed of one four hundred and fortieth of a trillionth of a second, which means it can shoot an image every 163 nanoseconds, making it six times faster than the best digital cameras available on the market.