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How Does it Work?
This is not really one trillion frames per second. Instead, this is more like a strobe effect. You have seen this, right? You know, you take a strobe light and shin it on a guitar string or something. If you get the frequency of the light just right, it will show images of the string at different positions during it’s oscillation. In the end, you get a video that looks like it is slow motion but it isn’t. Actually, with the strobe light you can see this in real life without even using a camera.
Basically, nanosecond laser pulses are shone on an object. In front of the camera is a narrow slit, so that only a thin slice of the laser light can be seen at one time -- the technical name for this device is a "streak camera." The laser pulses, with very complex timing circuitry, are then picked up by an array of 500 sensors in the camera -- but only one "scan line" at a time (thanks to the narrow slit). Using mirrors, the camera's angle of view is changed over time until each of these one-dimensional slices can be built up into a complete 2D image. This process, which takes about an hour, has led to one of its creators -- Ramesh Raskar -- to dub this trillion-FPS wonder "the world's slowest fastest camera."
Originally posted by 1BornPatriot
This camera is so fast it can record light in motion.
I dont know what to say - this is just super awesome.
I want one.
Kodak 1TFPS .. but this one is built by the best school on earth,... MIT
Originally posted by impaired
I just saw light in slow motion - and it looked like water at some point! I can't believe what I just saw - that was MAJOR.
Thank you, OP!
(Walks away dazed because still in shock).