Friday Vid: Femto-photography
The digital camera market is a bit obsessed with megapixels. Ramesh Raskar couldn’t care less about that; he’s into speed.
If you thought a nanosecond was fast, then a picosecond is faster and a femtosecond faster again. So what does the world look like at a trillion frames per second, when you can visibly see the motion of light? Weirder than you expect…
The kicker for me is at the end where Ramesh explains they had to ‘correct’ the image because at this ‘speed’ you start to see the changes in time Einstein predicted when you neared the speed of light!