High-speed filming could offer view of rapid chemistry, physics phenomena
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| General Latest Camera from Internet, This is not High Speed Filming Camera |
A new video camera, the fastest by far,
has set a staggering speed record. It films 5 trillion frames
(equivalent to 5 trillion still images) every second, blowing away the
100,000 frames per second of high-speed commercial cameras. The device
could offer a peek at never-before-seen phenomena, such as the blazingly
fast chemical reactions that drive explosions or combustion.
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| SPEEDSTER A video camera that can film the equivalent
of 5 trillion images every second reaches such speeds with the help of
an algorithm, capturing the movement of light particles (orange ball). |
Researchers
at Lund University in Sweden demonstrated the camera’s speediness by
filming particles of light traveling a distance as thin as a sheet of
paper, then slowing down the trillionth-of-a-second journey to watch it.
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| UNPACKING TIME
Here, the algorithm has decoded the movement of a group of light
particles (orange ball) from one image into four, spanning three
trillionths of a second. |
The gadget works by repeatedly flashing a
laser at a subject, with each flash getting a unique code. The subject
reflects the flashes, and those reflections are combined into a single
image. Then, an algorithm separates the image into a video sequence based on the codes, the scientists report March 15 in Light: Science & Applications. A German company is developing the camera for laboratory use. It could be ready in about two years.
SPEED DEMON A new high-speed camera
caught light particles on the move. In this video, the particles (orange
ball) travel about a tenth of a millimeter, the thickness of a piece of
paper. The speed shown is a trillion times slower than the time it
takes for the actual event to happen.
Source : sciencenews.org
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