I thought this was going to be about the CUP (compressed ultrafast photography)camera used to record laser beams at trillions of frames per second.,(reply>), I thought it was going to be about passing laser light through certain mediums, where the speed of light in those mediums is very slow.,(reply>), @JaxMerrick thanks for the correction,(reply>), @sixstringedthing Slow Mo Guys did a video on it. Wrong Brit.,(reply>), I thought that Tom had already done a video on that technology, but I could well be mistaken.,(reply>), Would a camera like that even behave like a camera? I mean the res would be so low it might aswell be called a light detector