University of Utah engineers have taken a step forward in creating the next generation of computers and mobile devices capable of speeds millions of times faster than current machines.
The Utah engineers have developed an ultracompact beamsplitter — the smallest on record — for dividing light waves into two separate channels of information. The device brings researchers closer to producing silicon photonic chips that compute and shuttle data with light instead of electrons.
Silicon photonics could significantly increase the power and speed of machines such as supercomputers, data center servers and the specialized computers that direct autonomous cars and drones with collision detection. Eventually, the technology could reach home computers and mobile devices and improve applications from gaming to video streaming.
At the University of Utah, researchers have developed an integrated-nanophotonics polarization beamsplitter with a footprint of 2.4 × 2.4 μm2. It is the smallest polarization beamsplitter ever demonstrated.
The researchers say they have taken a step forward to creating the next generation of super computers.
Engineering professor Rajesh Menon says this technique offers some big changes for the future.
This ultracompact beamsplitter is designed to enable networks and computers to transmit data using light instead of electrons.
These new computers would be millions of times faster than what we are using now. Instead of using electronics, researchers say the future will be light.
The key advantage of light, made of photons, is it’s the fastest thing you can use to transfer information .
Potential advantages go beyond processing speed. The Utah team’s design would be cheap to produce because it uses existing fabrication techniques for creating silicon chips. And because photonic chips shuttle photons instead of electrons, mobile devices such as smartphones or tablets built with this technology would consume less power, have longer battery life and generate less heat than existing mobile devices.
The first supercomputers using silicon photonics — already under development at companies such as Intel and IBM — will use hybrid processors that remain partly electronic. Menon believes his beamsplitter could be used in those computers in about three years. Data centers that require faster connections between computers also could implement the technology soon.
#technology #innovation #eyecare
Imagine being able to see three times better than 20/20 vision without wearing glasses or contact lenses — even at age 100 or more — with the help of bionic lenses implanted in your eyes.
Dr. Garth Webb, an optometrist in British Columbia, canada has invented the Ocumetics Bionic Lens for giving perfect vision to the patients with vision problems.
Webb says people who have the specialized lenses surgically inserted would never get cataracts because their natural lenses, which decay over time, would have been replaced
According to him, with the Bionic Lens, Perfect eyesight would result "no matter how crummy your eyes are".
The Bionic Lens would be an option for someone who depends on corrective lenses and is over about age 25, when the eye structures are fully developed.
This Bionic Lens will improve your vision three times better than 20/20 vision . That means, If you can just barely see the clock at 10 feet, when you get the Bionic Lens you can see the clock at 30 feet away
Dr. Garth Webb says the painless procedure, identical to cataract surgery, would take about eight minutes and a patient's sight would be immediately corrected.
The custom-made lens, folded like a taco in a saline-filled syringe, would be injected in an eye, where it would unravel itself within 10 seconds.
Webb, who is the CEO of Ocumetics Technology , has spent the last eight years and about $3 million for researching and developing this Bionic Lens, and for getting international patents and securing a biomedical manufacturing facility in Delta, British Columbia in Canada.
Pending clinical trials on animals and then blind human eyes, the Bionic Lens could be available in Canada and elsewhere in about two years, depending on regulatory processes in various countries.
Alongside his Bionic Lens venture, Webb has set up a foundation called the Celebration of Sight, which would donate money to organizations providing eye surgery in developing countries to improve people's quality of life.
"Perfect eyesight should be a human right," he says.
A group of Japanese techies have designed a toothbrush that uses super skinny nylon bristles wrapped in nano-size mineral ions to scrub teeth clean. Stains are lifted, plaque and other unwanted materials are avoided, and the enamel that defends your teeth from decay is protected.
It is used without toothpaste, just with water, and relies on mineral nanotechnology. It's named as Misoka toothbrush
The #MISOKA toothbrush for cleaning your teeth with only water was first launched onto the market by its creator in the year 2007 i-e around 8 years back. This ground-breaking new toothbrush uses bristles treated with a nano-mineral coating to assist with removing plaque from the tooth exterior simply by moistening the bristles and brushing. As it does not require toothpaste, it also contributes to people’s health and to preserving the global environment. To date, more than 2 million of the MISOKA toothbrushes have been sold in Asia and around the world.
Simply moisten the bristles and brush your teeth. The MISOKA toothbrush cleans your teeth by using the action of nano-sized mineral particles on the bristles to remove plaque from the surfaces of your teeth. It also gives the surfaces a smoother feel by making them more hydrophilic. This ground-breaking new toothbrush gives you the confidence of knowing you have brushed your teeth properly, leaving the inside of your mouth feeling fresher by making it more difficult for plaque and other material to stick to your teeth. Each MISOKA toothbrush will last for about one month.
We can find this MISOKA toothbrush for as low as $35 on eBay and for only $14 on Amazon.
The LightSail is blasting off to space along with the X37B drone for a test flight on May 20th, but the project still needs a lot more money for its first major mission in 2016. So, the Planetary Society has started a Kickstarter campaign for getting money from crowdsourcing.
LightSail was originally conceptualized by Carl Sagan as a "solar sailer," a spacecraft that uses the sun's radiation for propulsion. The Planetary Society, is attempting to make its own version -- the current model is a CubeSat no bigger than a breadbox with four sails. If the team manages to raise enough money, LightSail will be sent to orbit aboard a SpaceX Falcon Heavy rocket in 2016.
Solar sails use the sun’s energy as a method of propulsion—flight by light. Light is made of packets of energy called photons. While photons have no mass, a photon traveling as a packet of light has energy and momentum.
Solar sail spacecraft capture light momentum with large, lightweight mirrored surfaces—sails. As light reflects off a sail, most of its momentum is transferred, pushing on the sail. The resulting acceleration is small, but continuous. Unlike chemical rockets that provide short bursts of thrust, solar sails thrust continuously and can reach higher speeds over time.
The European Space Agency, ESA has released amazing video showing beautiful Aurora borealis as seen from the International Space Station (ISS)
Still images taken by ESA astronaut Samantha Cristoforetti on the International Space Station were joined together to create this amazing timelapse video.
An aurora is a natural light display in the sky particularly in the high latitude i-e Arctic and Antarctic regions.
It is caused by the collision of energetic charged particles with atoms in the high altitude atmosphere. .
In northern latitudes, this effect is known as the aurora borealis or the northern lights.
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- John the baptist Hr. Sec. School, Puthiamputhur, Tuticorin District, India
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