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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.
Google's neural machine can translate English to Bengali, Marathi, Tamil.
In an effort to keep the Internet alive and interesting for a billion Indians, search giant Google has announced the launch of multiple Indian languages support across its products. To start with, Google Translate will use Google's new neural machine translation technology for translating English in nine Indian languages -- Hindi, Bengali, Marathi, Tamil, Telugu, Gujarati, Punjabi, Malayalam and Kannada.
The company also claims that neural translation offers a huge improvement over the old phrase-based system, translating full sentences at a time, instead of parts of a sentence. Using the new machine learning technology, translation speed has been increased from 10 seconds per sentence to 0.2 seconds per sentence in just two months. Google has announced the extension of neural machine translation to Chrome browser's built-in auto-translate functionality, which results in quick and accurate full-page translations. The new service is also accessible on Google Search and Google Maps, on mobile as well as on desktop.
Google says that over the past few years, the rapid scale of the Internet adoption across the country has set the ball rolling and today India language users have already overtaken the total number of English language users in India. It says 68 per cent Internet users consider digital content in local languages to be more reliable than English feeds.
Google has also extended its support for 11 more Indian languages for Gboard, a new keyboard for iOS and Android devices. Google Search has been built right into the keyboard, allowing users to search and use Google Translate. There is also a "Hinglish" language option with new text editing tool, making select, copy and paste options much easier. The Gboard also offers auto-correction and prediction in new languages along with two layouts for each -- one in the native language script and one with the QWERTY layout for translation.
Moreover, Google has also added a Hindi dictionary for Google Search. The results will be fetched from Rajpal & Sons dictionary in collaboration with the Oxford University Press.
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