I haven't post any entry with slow motion video for a long time. But ultraslo uploaded a cool slow motion video in which he smashes a light bulb with a hammer. The video is taken at 2500 FPS. the reason that i uploaded this entry, is because little before the bulb is broke, you can see the 50-60Hz pulsing of the filament! Something that is absolutely impossible for our eyes to notice. That is so cool!