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World’s Fastest Camera Can ’Capture Light’
Scientists have developed a super- fast camera that can film at an unprecedented rate of five trillion images per second, fast enough to visualise the movement of light.
The camera will be able to capture incredibly rapid processes in chemistry, physics, biology and biomedicine, that so far have not been caught on film, researchers said.
A research group at Lund University in Sweden successfully filmed how light - a collection of photons - travels a distance corresponding to the thickness of a paper.
In reality, it only takes a picosecond, but on film the process has been slowed down by a trillion times.
Currently, high-speed cameras capture images one by one in a sequence, filming 100,000 images per second.
The new technology called Frequency Recognition Algorithm for Multiple Exposures (FRAME) is based on an innovative algorithm, and instead captures several coded images in one picture. It then sorts them into a video sequence afterwards.
The method involves exposing what you are filming (for example a chemical reaction) to light in the form of laser flashes where each light pulse is given a unique code.
The object reflects the light flashes which merge into the single photograph. They are subsequently separated using an encryption key.
The film camera is initially intended to be used by researchers who literally want to gain better insight into many of the extremely rapid processes that occur in nature.
Many take place on a picosecond and femtosecond scale, which is unbelievably fast - the number of femtoseconds in one second is significantly larger than the number of seconds in a persons life-time.
"This does not apply to all processes in nature, but quite a few, for example, explosions, plasma flashes, turbulent combustion, brain activity in animals and chemical reactions. We are now able to film such extremely short processes," said researcher Elias Kristensson.
"In the long term, the technology can also be used by industry and others," Kristensson said.
A regular camera with a flash uses regular light, but in this case the researchers use "coded" light flashes, as a form of encryption.
Every time a coded light flash hits the object - for example, a chemical reaction in a burning flame - the object emits an image signal (response) with the exact same coding.
The following light flashes all have different codes, and the image signals are captured in one single photograph. These coded image signals are subsequently separated using an encryption key on the computer.
Hope without a strategy doesn’t generate leadership.
Leadership comes when your hope and your optimism are matched with a concrete vision of the future and a way to get there.
People won’t follow you if they don’t believe you can get to where you say you’re going.
Who the hell do you think you are playing God,Assad? Between you,Putin,Iran leadership,North Korea& President Trump people don't stand a chance ofescape from your cold-hearted assassins!Those beautiful women babies,&
young men you killed! I don't care what you think"NO GOD"would kill his children with such awful poisons!One of these days all you leaders will pay for not
appreciating your constituencies.. you know the people who voted you in,who let you stay,& pay your salary!You all have got some hard lessons to learn,about love,
kindness and humanity!You &
your regimes God will catch up
with sending you all straight to hell!Your chemical weapons of war,your dictatorships,the people have to take orders an live the way you all say!Yes one day you all will see, God(no matter which one we worship)will grow tired of you an Satan's destruction,an send you
all to hell for the sorrow you put his children through! Until then good,
loving families will keep looking for an escape from all of you evil leaders running over & killing your people,getting your way for your own personal gain!