Latest Nanotechnology news –“dry granular materials such as sands, seeds and grains have properties similar to liquid”

University of Chicago researchers recently showed that dry granular materials such as sands, seeds and grains have properties similar to liquid, forming water-like droplets when poured from a given source. The finding could be important to a wide range of industries that use "fluidized" dry particles for oil refining, plastics manufacturing and pharmaceutical production.

Researchers previously thought dry particles lacked sufficient surface tension to form droplets like ordinary liquids. But, in a first-time accomplishment, physicists from the Materials Research Science and Engineering Center at the University of Chicago, led by Professor Heinrich M. Jaeger, used high-speed photography to measure minute levels of surface tension and detect droplet formation in flows of dry granular materials.

The science journal Nature reports the finding in its June 25 issue. The materials research center at the University of Chicago is supported by the National Science Foundation.
Until recently, studies of so-called "free falling granular streams" tracked shape changes in flows of dry materials, but were unable to observe the full evolution of the forming droplets or the clustering mechanisms involved.

"Previous studies of granular streams were able to detect clustering by performing experiments in vacuum and were able to establish that the clustering was not caused by the drag from the ambient air," said Jaeger. "However, the cause of the clustering remained a mystery."

Source: National Science Foundation. http://www.nsf.gov/news/news_summ.jsp?cntn_id=114907&org=NSF&from=news

The earliest radio

The earliest radio could not broadcast sound or verbal communication and was called the "wireless telegraph." The first display of wireless telegraphy took place in the lecture theater of the Oxford University Museum of Natural History on August 14, 1894, conceded out by Professor Oliver Lodge and Alexander Muirhead. During the display a radio signal was sent from the adjacent Clarendon laboratory building, and received by device in the lecture theater.

In 1895 Alexander Stepanovich Popov built his initial radio receiver, which enclosed a coherer. Further developed as a lightning detector, it was offered to the Russian Physical and Chemical Society on May 7, 1895. A representation of Popov's lightning detector was printed in the Journal of the Russian Physical and Chemical Society the same year. Popov's receiver was shaped on the improved basis of Lodge's receiver, and in the beginning proposed for reproduction of its experiments.

Sony Company was the first to introduce transistorized radio in the year 1960. It was small in size that can fit in a vest pocket, and able to be powered by a small battery. It was tough, for the reason that it had no vacuum tubes to burn out. Digital transmissions was started and to be applied to broadcasting only in the late 1990s.

Space station's wings get a lift from robot arms

Astronauts used a pair of robotic cranes to unpack the International Space Station's last set of solar wing panels from shuttle Discovery's cargo bay on Wednesday, part of three-day effort to bring the orbital outpost up to full power.

Installing the power system is the primary purpose of NASA's 125th shuttle mission, which began Sunday with Discovery's blastoff from the Kennedy Space Center in Florida. The shuttle arrived at the station, orbiting 220 miles above Earth, on Tuesday for an eight-day stay.

The shuttle and station crews used robot arms on both spacecraft to delicately maneuver the 31,000-pound (13,950 kg) girder, which contains the solar power panels, out of the shuttle and over to the space station. It is scheduled to be installed on Thursday during the mission's first spacewalk.

Once in position, the station's 11-part spine will be complete after more than a decade of construction. NASA has up to nine shuttle missions remaining to finishing installing science laboratories and equipment to support an expanded, six-member space station crew.

The power system, built by Boeing, is designed to supply 124 kilowatts of electricity to the station -- enough to power 42 average-sized U.S. homes.

During their first in-flight interview, rookie astronauts said the rocket ride into space was smoother than they had expected.

"The time kind of sneaks up on you. You're sitting there waiting and waiting and waiting and all of sudden you're inside the nine-minute hold (in the launch countdown) and you know you're going to go," said Richard Arnold, one of Discovery's two teacher-astronauts.

"I was surprised at how relatively quiet it was -- a bit of shaking, a very smooth ride. I was expecting a bit more noise," he added.

For more information log onto : http://uk.reuters.com/article/scienceNews/idUKTRE52E09120090319

Space station's wings get a lift from robot arms

Astronauts used a pair of robotic cranes to unpack the International Space Station's last set of solar wing panels from shuttle Discovery's cargo bay on Wednesday, part of three-day effort to bring the orbital outpost up to full power.

Installing the power system is the primary purpose of NASA's 125th shuttle mission, which began Sunday with Discovery's blastoff from the Kennedy Space Center in Florida. The shuttle arrived at the station, orbiting 220 miles above Earth, on Tuesday for an eight-day stay.

The shuttle and station crews used robot arms on both spacecraft to delicately maneuver the 31,000-pound (13,950 kg) girder, which contains the solar power panels, out of the shuttle and over to the space station. It is scheduled to be installed on Thursday during the mission's first spacewalk.

Once in position, the station's 11-part spine will be complete after more than a decade of construction. NASA has up to nine shuttle missions remaining to finishing installing science laboratories and equipment to support an expanded, six-member space station crew.

The power system, built by Boeing, is designed to supply 124 kilowatts of electricity to the station -- enough to power 42 average-sized U.S. homes.

During their first in-flight interview, rookie astronauts said the rocket ride into space was smoother than they had expected.

"The time kind of sneaks up on you. You're sitting there waiting and waiting and waiting and all of sudden you're inside the nine-minute hold (in the launch countdown) and you know you're going to go," said Richard Arnold, one of Discovery's two teacher-astronauts.

"I was surprised at how relatively quiet it was -- a bit of shaking, a very smooth ride. I was expecting a bit more noise," he added.

For more information log onto : http://uk.reuters.com/article/scienceNews/idUKTRE52E09120090319

Having a cow over Gmail just misses the point

A big outage at Google Tuesday. Things go dark early while most of the U.S. is sleeping. Still, the Internet is without borders and so the glitch leaves millions of people who use Google Web mail and Google Apps, high and dry.

It was mild melodrama for a few hours but things returned to normal after a few hours. It's still unclear what happened, though Google says it's investigating the problem.

Truth be told, the walls of Jericho did not crumble, though the outage nonetheless triggered the (now thoroughly predictable) hand-wringing and bloviating from the usual cast of characters. Amusing to watch, but after this incident, there's also the wider context to consider.

Any outages are embarrassing. But while Gmail did crash a few times in 2008, this is the first time the service has gone down in quite a while. (As my colleague Stephen Shankland noted, Google extends a guarantee to corporate customers paying for any of its business Apps services, which rely on the cloud. The promise: they will be able to access Gmail at least 99.9 percent of the time every month. If not, Google pays them a penalty fee. So far Google says it hasn't fallen below that mark.)

If these sorts of outages occurred with more regularity, I suppose that would seriously retard cloud computing's growth. Google and Salesforce.com and Amazon and any other purveyors of cloud-based services obviously cringe when their connections fail. Not to underplay the anguish customers and vendors find themselves dealing with, but the real news here is how rare these cloud-computing outages have become.

A few years ago it seemed that eBay's Web site was seizing up all of the time. The reality was less severe but merchants and bidders would scream bloody murder. At the same time, eBay, Yahoo, Amazon, and Buy.com were dealing with repeated denial-of-service (DoS) attacks. Things got so bad that some even feared for the future of e-commerce.

We now know how the story turned out. Fact is that there are no 100 percent guarantees anymore, not in a world in which applications increasingly get hosted on the Internet. When things go bump in the night, as they inevitably will, there is going to be a commotion, albeit a temporary one. Get over it, already.

source:http://news.cnet.com/8301-10787_3-10171400-60.html

Infosys Technologies has set up Infosys Science Foundation, a not-for-profit trust to promote research in sciences and honour outstanding contributions and achievements by Indians.

The foundation will be funded by a corpus of Rs 21.5 crore and give out annual awards under different categories. The prize money under each will be Rs 50 lakh, one of the highest in the country for research.

Speaking at a media conference here on Tuesday, N R Narayana Murthy, chief mentor of Infosys, said: "India needs bright minds across all areas of academics
, government, business and society to strive for global excellence. We need to encourage research in the country to address our developmental problems. This award will honour outstanding researchers who will make a difference to our future.''

The jury panel for each area will consist of eminent international personalities and will be selected by the trustees of the foundation.

Infosys had earlier instituted a global award for computing excellence with a cash prize of $ 150,000. The annual award, instituted through the Association for Computing Machinery (ACM), comes out of a corpus of $4 million given by Infosys.

Awards in five categories:

l Physical sciences (physics and chemistry)

l Mathematical sciences (mathematics and statistics)

l Engineering sciences (all branches of engineering)

l Life sciences (biology and medicine)

l Social sciences and economics (economics, history, sociology, political science and other social sciences)

source:http://timesofindia.indiatimes.com/Bangalore/Infy_to_promote_science_research/articleshow/4145994.cms

Satellite tracking of Olive Ridley turtles in Orissa

KENDRAPARA (ORISSA): Orissa Forest department and Wildlife Institute of India has again embarked on a telemetry tracking of endangered marine species by establishing Platform Terminal Transmitters (PTT) linkage on three Olive Ridley turtles along Gahirma tha coast.

The telemetry experiment under the stewardship of a six-member team of WII researchers was successfully conducted on February 1 along Babuballi Island of Gahirmatha coast, according to forest officials.

The experiment which had earlier failed to yield desired results aims at exploring the mysterious path these aquatic species travel. “We intercepted two male turtles and a female along the deep sea water near unmanned Babuballi Island.

They were fitted with PTT telemetry objects weighing about 2 kilograms,'' said a forest official who took part in the exercise. The animals were kept under observation to ensure that foreign objects caused no discomfort to the marine visitors. The WII s cientists monitored their movements before they disappeared and plunged into the swirling sea water.

The entire exercise lasted for a little over an hour, he said. As male turtles never invade the nesting ground where females lay eggs, little is known with regard to their behavioural instinct and movement. – PTI

sources:http://www.thehindubusinessline.com/blnus/14051454.htm

Study shows what makes locusts swarm

LONDON (Reuters) - A brain chemical that lifts people out of depression can transform solitary grasshoppers into swarming desert locusts, a finding that could one day help prevent the devastating plagues, researchers said on Thursday.

Increases of serotonin, the nerve-signaling chemical targeted by many antidepressants, appears to spark the behavior changes needed to turn the normally harmless insects into bugs that gang up to munch crops, they said.

"Our paper shows how this change in behavior changes what are essentially large grasshoppers living in the desert into swarming, destructive pests," said University of Cambridge researcher Stephen Rogers, who worked on the study.

"For a swarm to develop the locusts must transform from a solitary phase into a gregarious phase."

Vast swarms containing billions of locusts stretching over dozens of square kilometers periodically devastated parts of the United States when the West was settled and they continue to inflict economic hardship on parts of Africa and China.

The last big African swarm in 2004 cost $400 million simply to eradicate the pests, a tab that did not included money lost to destroyed crops, Rogers added.

"The gregarious phase is a strategy born of desperation and driven by hunger, and swarming is a response to find pastures new," he said.

Rogers and colleagues, who published their findings in the journal Science, wanted to find out what triggered the behavior change, which occurs when the insects gather in close quarters.

more information log onto:http://uk.reuters.com/article/scienceNewsMolt/idUKTRE50T04620090130