MIT Camera capturing light traveling

Mindbending video shows MIT Camera capturing light traveling

MIT created a spectacular device to capture light from an interesting
perspective and create a 'movie' effect to show how fast it travels.

It's amazing how light moves to offer different hues and perspectives.
Visualizing an image from complete darkness to its various shades and
saturations is the magic of light traveling. This process happens
within seconds. The exposure time of each frame is just two
trillionths of a second. The MIT Media Lab's Camera Culture group has
developed a solution to capture this mesmerizing process. Since light
moves too fast to be captured directly, the equipment uses a
'stroboscopic' method to capture the movement. These visuals are then
arranged into a "movie" that lasts a nanosecond.

https://www.good.is/mindbending-video-shows-mit-camera-capturing-light-traveling-ex1