Alan Sailer is a California based photographer who is famous with amazing high speed photographs. A normal photographic flash unit gives a flash that lasts around a thousandth of a second (a millisecond). However Alan Sailer’s flash unit is much faster than this, and produces a flash of light around a microsecond (a millionth of a second). This allows him to freeze things that are happening extremely fast, and to give us a view of something that otherwise we would never see.
Check out 10 Most Devastating Examples Of High Speed Photography By Alan Sailer. You can find hundreds of examples for high speed photography in his official flickr page.