sulabh swatchh bharat

Tuesday, 17-October-2017

wings-for-softer-aircraft-purrs

WINGS FOR SOFTER AIRCRAFT PURRS

14 weeks ago
The unique wing features of owls that make their flight silent could hold the key to making aircraft and wind turbines quieter, suggests new research. A team of researchers from Japan and China studied the serrations in the leading edge of owls’ wings, gaining new insight into how they work to make the birds’ flight silent. The results, published in the journal Bioinspiration and Biomimetics, pointed towards potential mechanisms for noise suppression in wind turbines, aircraft, multi-rotor drones and other machines. “Owls are known for silent flight, owing to their unique wing features, which are ...
saudi-based-nri-to-help-talented-students

SAUDI-BASED NRI TO HELP TALENTED STUDENTS

14 weeks ago
A Saudi Arabia-based NRI has joined hands with Super 30, a free coaching centre which helps children from poor families reach the prestigious IIT engineering institutes, to help talented youth from the minority community prepare for the IIT and other technical education courses. Obaidur Rahman, a businessman who is also chairman of the Bihar Foundation in Saudi Arabia, has formed an organisation called Rahman 30, which will select 30 talented students from the minority community through screening tests. These students will be provided free coaching by Super 30 founder director Anand Kumar. “The main objective is to ...
zuckerberg-unveils-fb-new-mission

ZUCKERBERG UNVEILS FB’S NEW MISSION

15 weeks ago
Facebook’s new mission is to give the people the power to build community and bring the world closer together, the social network’s CEO Mark Zuckerberg has said. Zuckerberg unveiled Facebook’s updated purpose on Thursday at the social network’s first Community Summit, a gathering in Chicago of leaders from 120 different Facebook Groups, Forbes.com reported. Facebook’s earlier stated mission was “to make the world more open and connected”. Facebook’s new mission does not mean that the company is shifting away from connecting friends and family, but rather that it is br...
nasa-detects-drop-in-world-forest-fires

NASA DETECTS DROP IN WORLD’S FOREST FIRES

15 weeks ago
Globally, the amount of land being burned by fire is declining and this is largely due to human activities, says a study based on NASA’s satellite data. The researchers, however, found that in some parts of the world including in India, China and Brazil, the amount of land being burned by fire has increased. The total acreage burned by fires each year declined by 24 per cent between 1998 and 2015, showed the findings published in the journal Science. “Climate change has increased fire risk in many regions, but satellite burned area data show that human activity has effectively counterbalanced tha...
melting-arctic-ice-raising -sea-levels

MELTING ARCTIC ICE RAISING SEA LEVELS

16 weeks ago
Climate change is warming the Arctic more than twice as fast as anywhere else on the planet. One of the most serious consequences is sea level rise, which threatens nations from Bangladesh to the U.S. But exactly how does melting Arctic ice contribute to sea level rise? Seas are now rising an average of 3.2 millimeters per year globally, and are predicted to climb a total of 0.2 to 2.0 meters by 2100. In the Arctic, the Greenland Ice Sheet poses the greatest risk for ocean levels because melting land ice is the main cause of rising seas—and “most of the Arctic’s land ice is locked up in Greenland,”...
test-run-for-driverless-train

TEST RUN FOR DRIVERLESS TRAIN

16 weeks ago
Beijing’s first driverless subway line started test runs on Monday, preparing to start service by the end of this year. The Yanfang line will serve the southwestern suburb Fangshan and be the first domestically developed automated subway on the mainland, according to First Engineering Co. Ltd. of China Railway Electrification Bureau Group. The maximum speed on the line will be 80 km per hour, and trains will have a capacity of 1,262 passengers, reports Xinhua news agency. According to the city’s five-year plan on rail construction, the total length of operational rail in the city will exceed 900 ...
oldest-humans-existed-in-northern-africa

OLDEST HUMANS EXISTED IN NORTHERN AFRICA

17 weeks ago
In a surprising and controversial geographic twist, researchers claim that the earliest known remains of the human species, Homo sapiens, have turned up in northwestern Africa. Fossils attributed to Homo sapiens and stone tools unearthed at Jebel Irhoud, Morocco, date back to apprximately 300,000 years ago, an international team of researchers reported in two papers in prestigious science journal Nature.  Until now, the oldest human fossils came from East Africa and dated to around 195,000 years ago. Although Homo sapiens might have emerged in East Africa, some researchers also categorize a previously discover...
wildfire-smoke-may-be-bad

WILDFIRE SMOKE MAY BE BAD

17 weeks ago
Smoke from wildfire worldwide could impact the atmosphere and climate much more than previously thought, new research using data collected during NASA airborne science campaigns has found. Brown carbon particles released into the air from burning trees and other organic matter are much more likely than previously thought to travel to the upper levels of the atmosphere, where they can interfere with rays from the Sun -- sometimes cooling the air and at other times warming it, the findings showed. “Most of the brown carbon released into the air stays in the lower atmosphere, but we found that a fraction of it d...
nasa-on-neutron-stars

NASA ON NEUTRON STARS

18 weeks ago
NASA is set to launch the world’s first mission devoted to studying rapidly spinning neutron stars, the densest objects in the universe. The US space agency plans to launch the Neutron Star Interior Composition Explorer, or NICER, aboard SpaceX CRS-11, a cargo resupply mission to the International Space Station, now rescheduled to be launched aboard a Falcon 9 rocket on Saturday.  The SpaceX cargo resupply mission was earlier scheduled for launch last week. The launch was aborted due to bad weather.  About a week after its installation aboard the International Space Station as an external att...
apple-new-iphone-features

APPLE’S NEW IPHONE FEATURES

18 weeks ago
Introducing iOS 11, a major update to the worlds most advanced mobile operating system, Apple has announced it would bring new experiences and several new features to iPhones and iPads this fall. iOS 11 is the biggest software release ever for iPad, with powerful multitasking features, the Files app and more ways to use Apple Pencil.  Augmented reality is coming to hundreds of millions of iOS devices with a new platform for developers to build apps that let users place virtual content on top of real-world scenes.  Speaking at the annual Worldwide Developers Conference (WWDC) here late on Monday, CE...
moon-found-around-dwarf-planet

MOON FOUND AROUND DWARF PLANET

20 weeks ago
Combining the power of several space observatories, including NASA’s Hubble Space Telescope, astronomers have uncovered a moon orbiting the third largest dwarf planet, catalogued as 2007 OR10. The pair resides in the frigid outskirts of our solar system called the Kuiper Belt, a realm of icy debris left over from our solar system’s formation 4.6 billion years ago. The team uncovered the moon in archival images of 2007 OR10 taken by Hubble’s Wide Field Camera 3.  Observations taken of the dwarf planet by NASA’s Kepler Space Telescope first tipped off the astronomers of the possibility of...
making-clean-fuel-from-human-waste

MAKING CLEAN FUEL FROM HUMAN WASTE

20 weeks ago
Poultry farmer Josephine Mbithe used to get up three times a night to add charcoal to her stove just to keep her newborn chicks warm. But since she started using fuel briquettes made with human waste, the stove burns all night, leaving her to sleep in peace. Mbithe is one of many Nakuru residents who have embraced the briquettes manufactured from human poo and sawdust collected around the town, northwest of Nairobi, in the Great Rift Valley. Before the briquettes find their way into Nakuru’s poor households, they undergo processes to ensure they are free from harmful pathogens that could cause diseases, and are...