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High speed camera
A high speed camera is a device used for recording slow-motion playback films, or used for scientific study of transient phenomena.[1]
A normal motion picture is filmed and played back at 24 frames per second, while television uses 25 frames/s (PAL) or 29.97 frames/s (NTSC). High speed cameras can film up to 250,000 frames/s by running the film over a rotating prism or mirror instead of using a shutter, thus reducing the need for stopping and starting the film behind a shutter which would tear the film stock at such speeds. Using this technique one can stretch one second to more than 10 minutes of playback time (super slow motion). The fastest cameras are generally in use in scientific research, military test and evaluation, and industry. An example of an industrial application is crash testing to better document the crash and what happens to the automobile and passengers during a crash. Television series such as MythBusters and Time Warp often use high speed cameras to show their tests in slow motion. The fastest high speed camera has the ability to take pictures at a speed of 200 million frames per second.[2]Daha fazlasını oku »Su dolu balonun suratta patlaması