Category: What is?

Tianhe-2, the fastest supercomputer

Development of a Chinese supercomputer, reported to be fastest in the world, will have far-reaching ramifications in the cyber world and is sure to break the U.S. monopoly in the field of strategic technology.

Photo credit: The Hindu

According to a survey results announced on Monday, Tianhe-2, a supercomputer developed by China’s National University of Defense Technology, achieved processing speeds of 33.86 petaflops (1000 trillion calculations) per second on a benchmarking test. It earned the supercomputer the number one spot in the Top 500 survey of supercomputers, agency reports said.

The tests show the machine is by far the fastest computer ever constructed. Its main rival, the U.S.-designed Titan, had achieved a performance of 17.59 petaflops per second, the survey said. Five of the world’s 10 fastest computers are installed in the U.S., the survey said, with the two in China, two in Germany and one in Japan.

Responding to reports of Chinese supercomputer, the former chief of the Defence Research and Development Organisation (DRDO), V.K. Saraswat described it as “a big breakthrough.” He said it would greatly augment the Chinese capabilities in the field of “very advanced cyber systems development.”

Talking to The Hindu, Dr. Saraswat said China had mounted efforts to develop such a machine long ago with the help of IT companies there and achieving such high speed in a supercomputer would boost its capabilities in both scientific and defence fields. It would not be easy for the rest of the world to get to share such highly advanced computing technology from China. “Generally, such supercomputers are meant for use in defence and scientific areas and are not commercially available. China is likely to use it for both offence and defensive purposes,” he added.

Read more via China’s Tianhe-2 ‘is fastest supercomputer’ | The Hindu.

Now it’s the turn of Light Pollution

Are you able to watch stars clearly at night? If not, you’re sky is affected with light pollution. With more than half of the worldwide population living in urban areas and more than one fifth living in large cities of one million or more inhabitants—light pollution obscures the stars above billions of people.

Image Credit: Wikimedia Commons

As an urban denizen, one might fail to notice it, but light pollution is making city slickers miss out on some breathtaking views of the night sky.

Light pollution is artificial illumination that has surprisingly changed the view of the night sky across the globe.

It is present in our surroundings since the 1800s but was undetectable at the time.

Read moe via Let there be less light: Light pollution and how to track it – Sci/Tech – DNA.

What is Spot-fixing?

What is Spot-fixing?

Spot-fixing involves a player agreeing to perform to order by pre-arrangement. For example, a bowler might deliberately bowl consecutive wides in his second over or a batsman could make sure he does not reach double figures.

Twenty20 cricket is particularly susceptible because so much happens so quickly that individual performances can soon be forgotten or dismissed as inconsequential.

via What is Spot-fixing? —