I am using a Bryan Mumford Time Machine and the high speed flash gear from http://www.highspeedflash.com/ to create some visually stunning images of water collisions – an example is here:
Some spikes added to the highlights using Noel Carboni’s plug-in 🙂 So this water drop collision took an exposure time of 9-millionths of a second, and the beer can pinhole camera project used a 6-month exposure time – that’s over 12 orders of magnitude difference in exposure time!