Witness wrote:Seeing light move, sorta (annoying music):
https://www.youtube.com/watch?v=-fSqFWcb4rEWe have built an imaging solution that allows us to visualize propagation of light at an effective rate of one trillion frames per second. Direct recording of light at such a frame rate with sufficient brightness is nearly impossible. We use an indirect 'stroboscopic' method that combines millions of repeated measurements by careful scanning in time and viewpoints.
Details & other vids: http://web.media.mit.edu/~raskar/trillionfps/
If you remember the poster "Mr. Skinny" at TOP he would have loved this. He was a safety officer at an AFB and had access to some gazillion megawatt laser. Testing was required so we sent a literal sock puppet on a trip around the world with the intention that 'Lil Steve would be destroyed by said gazillion megawatt laser.
Unfortunately 'Lil Steve vanished somewhere over the Pacific Ocean.