Why Blue LEDs are Worth a Nobel Prize ….

Blue light-emitting diodes help create the glowing screens of mobile phones, computers and TVs and promises to revolutionise the way the world lights its homes and offices.

Shivanand Kanavi reports on the importance of these little lights that won the Nobel Prize this year.

White and blue light emitting diodes used as Christmas decorations in Tokyo. Photograph: Toru Hanai/Reuters

That bluish-white light glowing from the screens of most new televisions, smartphones, laptops and tablet computers?

It comes from light-emitting diodes, better known as LEDs. Many businesses light their work spaces with LEDs. More and more, LEDs light up outdoor street signs and traffic lights.

Some homeowners have begun turning to this new form of lighting to illuminate their rooms. And most cars and trucks now use these same LEDs in their tail lights.

Three scientists have now won the 2014 Nobel Prize in physics for developing the technology that has made this lighting possible.

On Tuesday, October 7, three Japan-born scientists — Isamu Akasaki, Hiroshi Amano and Shuji Nakamura — won the Nobel Prize in physics for the invention of blue light-emitting diodes — a new energy-efficient and environmentally friendly light source.

According to the Royal Swedish Academy of Sciences, the committee that bestows the honour, which includes a prize money of 8 million kronor (Rs 6.8 crore/Rs 68 million), when Nakamura, Akasaki and Amono ‘produced bright blue light beams from their semiconductors in the early 1990s, they triggered a fundamental transformation of lighting technology.’

Explaining further, the committee said, ‘The LED lamp holds great promise for increasing the quality of life for over 1.5 billion people around the world who lack access to electricity grids.’

The question now that arises is can semiconductor chips, which have revolutionised the way we live, give us light? The answer today is, it can.

Such chips for lighting are not made of silicon, which is used in electronics but more complex semiconductors, made of alloys of gallium, indium, arsenic, nitrogen, aluminum, phosphorous.

It has been known since the turn of the century that some semiconductors emit light when a current is passed through them. However, it has taken almost a hundred years for technology to do it efficiently and inexpensively.

The discovery and perfection of direct conversion of electricity into light has also led to the reverse that is the development of more efficient solar panels to convert light into electricity.

The first bright LEDs to be invented were emitting red, then orange and yellow light. However, attempts at producing green and blue LEDs were not very successful till a Japanese scientist Shuji Nakamura invented a bright blue LED and later white LED in the mid-1990s.

Nakamura’s work brightened up the whole field and intense activity ensued leading to fast growth. He worked hard with very little funding and repeated disillusionment for several years to come up with blue LEDs.

The company he worked for at that time, Nichia is today one of the world leaders in blue and white LEDs and lasers. A few years ago, he moved out of Nichia and today, is a faculty member at the University of California at Santa Barbara.

LEDs for lighting purposes have many advantages. They convert electricity much more efficiently into light than say incandescent bulbs or fluorescent lamps. In fact, 90 per cent of energy in incandescent bulbs is wasted as heat.

LEDs also last much longer — up to 1,00,000 hours — that is more than 12 years of continuous operation. Whereas in the case of incandescent lamps, they last for 1,000 hours while fluorescent lamps last for 10,000 hours.

LEDs also consume less electricity, which is why batteries in a LED flashlight, for example, seem to go on forever. These make LEDs ideal if you are in a remote area on your own, camping or even in times of natural disaster.

However, LEDs do, like with all technology, have some flaws and weaknesses.

One the brightness of LEDs — that is measured in Lumens per Watt of electrical power — is still nowhere near the standard required for high brightness lighting. Secondly, the products are still expensive and lastly, the light is extremely bright in one direction hence, a LED light directed towards your work bench or a flashlight works well but if you try to light up your room with it then you end up using too many LEDs.

Image, Below: Isamu Akasaki, Hiroshi Amano and Shuji Nakamura, this year’s Nobel Prize winners for Physics.

ALSO READ:  Trio win Nobel for invention of blue LEDs

Shivanand Kanavi  in redii.com

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NASA Invites Public to send their Names into Space !!!

Over 2.8 lakh people from around the world, including 21,729 Indians, have so far submitted their names to be inscribed on a NASA microchip that will eventually fly to Mars.

NASA is giving people a chance to shoot their names up into space on the first Orion mission, scheduled to for launch on December 4, and then eventually to the Red Planet.

http://mars.nasa.gov/layout/embed/image/485snm/

Currently, 2,80,429 people have submitted their names to fly into space.

The highest number of names submitted to NASA so far from a single country – a total of 1,13,121 – comes from the USA while the third-largest submission of names is from India, with 21,729 space enthusiasts from the nation giving their names.

Other countries with high participation include UK (22,491 names), Philippines (9,869 names) and Canada (7,760 names). Currently, only 1,828 names have been submitted from China and 1,620 from Pakistan.

The collected names will be included on a microchip the size of a dime. The first trip will be on board NASA’s initial test flight for the new Orion spacecraft. It is set for a 4.5-hour mission in orbit around Earth.

“After returning to Earth, the names will fly on future NASA exploration flights and missions to Mars. With each flight, selected individuals will accrue more miles as members of a global space-faring society,” NASA said.

To sign up, users have to go to NASA’s name-collecting site, fill out some basic information, and submit. The site then generates a digital “boarding pass.”

The deadline for getting your name on Orion’s inaugural flight is October 31.

SOURCE::::: THE HINDU.COM

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Keywords: NASAOrion

Image of the day…. Image sent by MANGALYAAN on 7 Oct 2014 !!!

India’s maiden spacecraft to Mars—Mangalyaan—has send another image of the Red Planet, captured by the camera on board.

“Another full disc image of Mars, taken by the Mars Color Camera, from an altitude of 66,543 km. Dark region towards south of the cloud formation is Elysium – the second largest volcanic province on Mars,” the facebook page of Isro Mars Orbiter said on Tuesday.

The spacecraft had beamed its first photos of Mars’ crater-marked surface a day after India successfully put the probe into the red planet’s orbit.

Just after that Isro had uploaded the regional dust storm activities over northern hemisphere of Mars – captured by Mars Color Camera.The image was taken from an altitude of 74500 km from the surface of Mars.

India joined an exclusive global club of deep space explorers on September 24 when the indigenously-made spacecraft successfully slipped into the orbit around Mars after a 10-month journey on a relatively shoe-string budget.

Source:::: http://www.hindustantimes.com

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Thanks to Elizabeth Holmes…Blood Tests in Future Would be Totally Different !!!

The next time you get a blood test, you might not have to go to the doctor and watch vials of blood fill up as the precious fluid is drawn from your arm.

No more wondering to yourself – “ah, how much more can they take before I pass out?”

Instead you might be able to walk into a Walgreens pharmacy for a reportedly painless fingerprick that will draw just a tiny drop of blood, thanks to Elizabeth Holmes, 30, the youngest woman and third-youngest billionaire on Forbes’s newly-released annual ranking of the 400 richest Americans.

Theranos Chairman, CEO and Founder Elizabeth Holmes

Revolutionizing the blood test is a golden idea.

Because of new testing methods developed by Holmes’s startupTheranos, that LONE drop can now yield a ton of information.

The company can run hundreds of tests on a drop of blood far more quickly than could be done with whole vials in the past – and it costs a lot less.

A Billion Dollar Idea

Holmes dropped out of Stanford at 19 to found what would become Theranos after deciding that her tuition MONEY could be better put to use by transforming healthcare.

Traditional blood testing is shockingly difficult and expensive for a tool that’s used so frequently. It also hasn’t changed since the 1960s.

It’s done in hospitals and doctor’s offices. Vials of blood have to be sent out and tested, which can take weeks using traditional methods, and is prone to human error. And of course, sticking a needle in someone’s arm scares some people enough that they avoid getting blood drawn, even when it could reveal life saving information.

Holmes recognized that process was ripe for disruption.

It took a decade for her idea to be ready for primetime, but now it seems that her decision to drop out was undoubtedly a good call. Last year, Walgreens announced that it will be installing Theranos Wellness Centers in pharmacies across the country, with locations already up and running in Phoenix and Palo Alto. And Holmes has raised $400 million in venture capital for Theranos, which is now valued at $9 billion (Holmes owns 50%).

The other two 30-year-olds that are just a little bit younger on Forbes’s List, Facebook founder Mark Zuckerberg and his former roommate, Facebook CEO Dustin Moskovitz, also have access to a wealth of information about people – but their data is less likely to save a life.

elizabeth holmes theranos

Courtesy Theranos

How It Works

One closely-guarded secret is what MedCityNews calls “the most interesting part of [the Theranos] story”: how exactly the technology behind its blood test works. The company’s methods are protected by more than a dozen patentsfiled as far back as 2004 and as recently as last week.

In an interview with Wired, Holmes hinted at some of the key ideas behind Theranos.

“We had to develop… methodologies that would make it possible to accelerate results,” she explained. “In the case of a virus or bacteria, traditionally tested using a culture, we measure the DNA of the pathogen instead so we can report results much faster.”

While we can’t yet assess independently how well that method works when compared to traditional blood tests, it already seems to be upending the old way of doing things.

Why Blood Tests?

Holmes told Medscape that she targeted lab medicine because it drives about 80% of clinical decisions made by doctors.

By zeroing in on the inefficiencies of that system, the Theranos approach completely revolutionizes it.

The new tests can be done without going to the doctor, which saves both MONEY and time. Most results are available in about four hours, which means that you could swing by a pharmacy and have a test done the day before a doctor’s visit, and then the results would be available for the physician.

Quick tests that can be done at any time are already a total change, but the amount of data the company can get from a single drop of blood is amazing.

Blood samples have traditionally been used for one test, but if a follow up was needed, another sample had to be drawn and sent out – making it less likely that someone would get care. The Theranos approach means the same drop can be used for dozens of different tests.

It’s cheap too. One common criticism of the healthcare system is that the pricing structure is a confusing disaster of a labyrinth that makes it impossible to know how much anything costs. Theranos lists its prices online, and they’re impressive.

Each test costs less than 50% of standard Medicare and Medicaid reimbursement rates. If those two programs were to perform all tests at those prices, they’d save $202 billion over the next decade, according to an interview with Holmes on Wired.

Plus, people get access to their own results.

source::::: KEVIN LORIA  in  http://www.businessinsider.in/

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As an example of how helpful that can be, Holmes told Wired that Theranos charges $35 for a fertility test, which is usually paid for out-of-pocket and costs up to $2,000.

But she also explained that this data could be useful for anyone looking to gain a better understanding of their health.

“By testing, you can start to understand your body, understand yourself, change your diet, change your lifestyle, and begin to change your life,” she said.

OCT. 2 … Perfect Day to Start ” Clean India ” Mission…A Fitting Tribute To Mahatma

Mahatma Gandhi, the father of the nation, was not an outspoken leader in his school days. In his The Story of My Experiments with Truth, Gandhi says that he would often run home from school as he could not “bear to talk to anybody.”

 

Gandhi’s marathon walk from his ashram to the sea at Dandi (241 miles) at the age of 60 during the Salt march in 1930 is well documented. It is believed that he enjoyed long walks in high school. In London, Gandhi as a law student used to walk as many as eight to ten miles a day, which saved him ample money.

 

During a radio broadcast for the United States from England, Gandhi’s first words heard were, “Do I have to speak into this thing?”

 

Gandhi was named as the Man of the Year in 1930 by Time Magazine

 

. Gandhi used to regularly correspond with Russian novelist Leo Tolstoy, whose ideals of nonviolent resistance had a profound impact on the Indian leader.

 

It is believed that Gandhi’s income as a lawyer in South Africa touched fifteen thousand dollars a year.

 

In his experiment to live modestly, Gandhi used to experiment on his diets. He started to live on fruits and goat’s milk.

 

Despite his dislike for photographs, Gandhi was the hugely photographed in those days.

 

The United Nations announced October 2 as the day of international day of ‘Ahimsa’

 

Despite studying law in England, Gandhi found it difficult to get a job in India which propelled him to travel to South Africa, where an Indian firm gave him a year-long contract to do legal work

 

Generations to come, it may well be, will scarce believe that such a man as this

one ever in flesh and blood walked upon this Earth – Albert Einstein

SOURCE:::: Yahooindia.com

Natarajan

Airbus Beluga …. World”s Weirdest Looking Plane !!!

Airbus’ Beluga celebrates 20 years in the air

IT’S the world’s weirdest looking aircraft. The aptly named Airbus Beluga, also known as the A300-600ST Super Transporter, is the whale of the skies and provides a unique way of transporting oversized cargo.

Developed to carry sections of Airbus aircraft from different production sites around Europe to their finally assembly line in Toulouse, France and Hamburg, it is also used to transport special delivery items.

The fleet of five Beluga aircraft perform more than 60 flights each week and each plane can carry a load of 47 tonnes over a range of 1667 kilometres.

This is how you transport your oversized luggage.

This is how you transport your oversized luggage. Source: AP

Its special cargo has included a famous painting from the Musee du Louvres in Paris to Tokyo, helicopters to Australia and a 17.6 metre long chemical tank weighing 39 tonnes.

Space hardware manufacturers also use the Beluga for transporting its space station modules, launch vehicle hardware and delicate satellites as the aircraft can provide temperature controlled conditions for its sensitive cargo.

The Beluga is operated by a three-member crew including two pilots and a loadmaster and has one of the biggest cargo holds of any civil or military aircraft flying today.

Transporting the tail piece of a China Southern plane. Picture: Airbus.

Transporting the tail piece of a China Southern plane. Picture: Airbus. Source: Supplied

The specially designed plane is used to transport military equipment. Picture: Airbus.

The specially designed plane is used to transport military equipment. Picture: Airbus. Source: Supplied

Just a little top heavy. Picture: Airbus.

Just a little top heavy. Picture: Airbus. Source: Supplied

It is specially used for transporting spacecraft. Picture: Airbus.

It is specially used for transporting spacecraft. Picture: Airbus. Source: Supplied

Inside the Beluga sits an aircraft tail piece. Picture: Airbus.

Inside the Beluga sits an aircraft tail piece. Picture: Airbus. Source: Supplied

Aircraft pieces arriving at Toulouse, France. Picture: Airbus.

Aircraft pieces arriving at Toulouse, France. Picture: Airbus. Source: Supplied

A plane inside a plane.

A plane inside a plane. Source: AFP   

SOURCE::: news.com.au

Natarajan

Management Lessons From India’s MANGALYAAN …

Management lessons from Isro’s Mangalyaan

India’s Polar Satellite Launch Vehicle, carrying the Mars orbiter, takes off from Sriharikota. Photo: Reuters/Isro

The resounding success of India’s Mars mission holds many lessons. Experts discuss the learning from the way the Indian Space Research Organisation (Isro) put its craft in the Mars orbit. Make a quality product R.D. Chandak, managing director and chief executive officer, KEC International The successful Mars Orbiter Mission, or the Mangalyaan, by Isro has many lessons for Indian manufacturers, says Chandak. The mission has shown that Indian companies can make a quality product at a competitive price, he says. To make India a manufacturing hub, Indian companies will have to make quality products on time, manage the logistics and produce at a very competitive cost, adds Chandak. Building the right team to deliver such projects is important. “Selecting the right team just doesn’t mean selecting the most qualified people; it also means selecting highly committed people,” he says. Teams also need to be empowered so that they can take critical decisions and ensure timely delivery of the project, he adds. Innovation is another major learning from the Mars mission. “Innovations need not be big advances in technology, but many small ones such as those that help reduce costs are important for corporates,” says Chandak. Every project has a certain amount of risk involved, and identifying the risks and managing them is important, he says. Time management, which is of paramount importance when executing such a project, is another lesson. “India wanted to send the Mars orbiter before China could. Having achieved the mission in a very strict time frame, it is a big example for Indian corporates in project management,” adds Chandak. It is also important for companies to learn not only from their own mistakes, but also from the mistakes of others, he says. Encourage team work Vinamra Shastri, partner, Grant Thornton India The scope of what a firm’s management can learn from the Mangalyaan project is very vast, says Shastri. However, there are a few takeaways that stand out. The mission became successful due to the collective effort and intelligence of stakeholders, not their individual genius, he says. Similarly, companies should consider encouraging teamwork and collaboration rather than pursuing individuals. “Every organization has people with different aptitude and skills. It is the responsibility of the senior leadership to ensure that they identify competencies and encourage teamwork,” says Shastri, adding the management should focus not only on the high performers, as different perspectives will only lead to more informed decision-making, resulting in better chances of success. Having a higher purpose for being in business is yet another key element, differentiating companies. Organizational goals should have a “higher purpose”—something which is unique and relevant, with which every stakeholder can relate to and have an emotional connect. A great example, he says, is the Tata group that has achieved more than its business goals. It stands for trust and responsibility. Similarly, the Mangalyaan project was launched not just to put India ahead of others in space research. Again, while Indian culture is appreciated on a personal or family level, the culture followed by Indian firms is often criticized by many. Mangalyaan could not be managed so efficiently within the specified time frame if the Indian Space Research Organisation did not have the right work culture, says Shastri. “(Management guru) Peter Drucker has said culture eats strategy for breakfast. Strategies formulated can only be executed when the work culture is conducive,” he adds. Plan for success, not failure K.G. Vishwanath, independent consultant The first lesson for Indian companies from the Mangalyaan Mars orbiter is to plan for success, not failure, says K.G. Vishwanath, an independent consultant and former Jet Airways (India) Ltd vice-president (investor relations). Vishwanath was part of the Jet Airways team that struck a deal to sell a 24% stake in the airline to Etihad Airways PJSC for $379 million. “Secondly, Isro had planned its production units across the country meticulously and tapped the best talent accompanied by the best planning tools,” he says. “They were not ready for taking any chances. They were planning not to fail. This is an inspiring lesson for any company and their boards.” Vishwanath says the third key lesson was about teamwork while handling egos. “Isro put all the team into one with a single objective. When a company stands together as one to achieve an objective, nothing can stop them and Mangalyaan proves that,” he says. He observes that choosing a team was purely based on merits irrespective of gender differences. “They just stood as one to accomplish the objectives,” he adds. “The last lesson is about passion. If you are doing anything, do it with passion. There are several examples of companies that have succeeded in the toughest MARKET conditions by showing inimitable passion,” he says. “Not to forget, Mangalyaan was accomplished with the lowest cost. It proves that while focusing on cheap cost, quality can still be maintained. Indigenous manufacturing means superior quality. That’s what we need now at a time when the nation is building a manufacturing base competing with China,” Vishwanath adds.

Read more at: http://www.livemint.com/Specials/3Y72VG1WlFbM5lBv7N1hSJ/Management-lessons-from-Isros-Mangalyaan.html?utm_source=copy

Source:::: Livemint.com

NATARAJAN

Image of the Day…Curiosity Rover Drilling Mars Mountain…

Curiosity rover drill pulls first taste from Mars mountain

The mission’s emphasis has changed from drive, drive, drive to systematic layer-by-layer investigation. “Curiosity flew hundreds of millions of miles to do this.”

This image from the Mars Hand Lens Imager (MAHLI) camera on NASA's Curiosity Mars rover shows the first sample-collection hole drilled in Mount Sharp, the layered mountain that is the science destination of the rover's extended mission. Image credit: NASA/JPL-Caltech/MSSS

NASA’s Curiosity Mars rover has collected its first taste of the layered mountain whose scientific allure drew the mission to choose this part of Mars as a landing site.

Late Wednesday, September 24, the rover’s hammering drill chewed about 2.6 inches (6.7 centimeters) deep into a basal-layer outcrop on Mount Sharp and collected a powdered-rock sample. Data and images received early Thursday at NASA’s Jet Propulsion Laboratory, Pasadena, California, confirmed success of this operation. The powder collected by the drilling is temporarily held within the sample-handling mechanism on the rover’s arm.

This southeastward-looking vista from the Mast Camera (Mastcam) on NASA's Curiosity Mars rover shows the

After landing on Mars in August 2012 but before beginning the drive toward Mount Sharp, Curiosity spent much of the mission’s first year productively studying in the Yellowknife Bay area, an area much closer to the landing site, but in the opposite direction.

From Yellowknife Bay to the base of Mount Sharp, Curiosity drove more than 5 miles (8 kilometers) in about 15 months, with pauses at a few science waypoints. The emphasis in mission operations has now changed from drive, drive, drive to systematic layer-by-layer investigation.

Jennifer Trosper of JPL is Curiosity Deputy Project Manager. She saud:

We’re putting on the brakes to study this amazing mountain.Curiosity flew hundreds of millions of miles to do this.

By investigating the shapes and chemical ingredients in the rock features, the team hopes to gain information about the possible composition of fluids at this Martian location long ago. Ashwin Vasavada of JPL is Curiosity Deputy Project Scientist. Vasavada said:

This drilling target is at the lowest part of the base layer of the mountain, and from here we plan to examine the higher, younger layers exposed in the nearby hills. This first look at rocks we believe to underlie Mount Sharp is exciting because it will begin to form a picture of the environment at the time the mountain formed, and what led to its growth.

Read more from NASA

 

SOURCE::::Earth sky news

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5 Surprising Things That Cost More Than India’s Historic Mission To Mars !!!

India just became Asia’s first interplanetary power. The country’s Mangalyaan satellite successfully made it into orbit around Mars on Wednesday after a roughly 10-month journey. The mission comes at an astonishingly low cost of $74 million, or nearly one-tenth of the price of NASA’s MAVEN spacecraft that entered the red planet’s orbit Sunday night.

Indian Space Research Organization chief K. Radhakrishnan even called the Mars Orbiter Mission “the cheapest interplanetary mission ever to be undertaken by the world.”

Just how cheap? This graph shows a handful of surprising things that cost more than India’s Mars mission.

India Mars

Business Insider

  • The most expensive apartment ever sold in London had a price tag of $237 million. You could get three of India’s satellites for that cost, and with a better view.
  • The new F-35 fighter jet costs a jaw-dropping $160 million a pop.
  • “Gravity” starring George Clooney and Sandra Bullock cost about $100 million. That’s about one-third more than the cost of the successful Mars mission.
  • The Airbus A380 would set you back more than $400 million. You could get more than five Mangalyaan satellites for that price.

 

SOURCE:::: Mike Bird  in Business Insider India.com

NATARAJAN