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‘Invisibility cloak’ effort reaches new landmark

A so-called ‘invisibility cloak’ succeeded in making a centimeter-scale cylinder perfectly invisible to microwaves — from one direction, reported the BBC. “It’s like the card people in Alice in Wonderland,” said Professor David Smith of Duke University, who co-authored the study published in Nature Materials. “If they turn on their…

Atmospheric CO2 risks increasing space junk: study

PARIS — A build-up of carbon dioxide in the upper levels of Earth’s atmosphere risks causing a faster accumulation of man-made space junk and resulting in more collisions, scientists said on Sunday. While it causes warming on Earth, CO2 conversely cools down the atmosphere and contracts its outermost layer, the…

Satellites reveal why Antarctic sea ice grows as Arctic melts

The mystery of the expansion of sea ice around Antarctica, at the same time as global warming is melting swaths of Arctic sea ice, has been solved using data from US military satellites. Two decades of measurements show that changing wind patterns around Antarctica have caused a small increase in…

Red wine compound resveratrol could aid prostate cancer treatment

Resveratrol, a compound found commonly in red wine, can make prostate tumor cells more susceptible to radiation treatment, according to a preliminary research published in the Journal of Andrology and Cancer Science. “Other studies have noted that resveratrol made tumor cells more susceptible to chemotherapy, and we wanted to see…

China plans manned space launch in 2013

China is aiming to launch its next manned space mission as early as June 2013, state media reported Saturday, as the country steps up its ambitious exploration programme. The Shenzhou-10, with three crew members, is aiming for a primary launch window in June, Niu Hongguang, deputy commander-in-chief of the manned…

Exxon subsidiary detects Nigeria offshore oil spill

US oil giant ExxonMobil’s Nigerian subsidiary on Saturday said a pipeline had been shut down after an oil spill off southern Akwa Ibom state. The source of Friday’s offshore leak had been identified and an investigation launched, the company said without giving further details. Nigeria is Africa’s largest oil producer.…

Marine ‘treasure trove’ could bring revolution in medicine and industry

Scientists have pinpointed a new treasure trove in our oceans: micro-organisms that contain millions of previously unknown genes and thousands of new families of proteins. These tiny marine wonders offer a chance to exploit a vast pool of material that could be used to create innovative medicines, industrial solvents, chemical…

Climate change threatens coffee supply

Climate change apparently poses a threat to the caffeinated beverage of choice for many Americans, as a number of wild varieties of coffee beans to go extinct before the end of the century, reported the Los Angeles Times. Studying African habitats in Ethiopia, the Sudan, and Kenya, scientists found “a…

Study: Climate change fulfilling most dire predictions

A NASA-funded climate study released Thursday said climate models that more accurately project relative humidity and cloud cover are more reliable in predicting the overall rate of change — a revelation that, disturbingly, means the planet’s changing climate is fulfilling scientists’ most dire predictions. In the study, published in the…

Climate change ‘likely to be more severe than some models predict’

Climate change is likely to be more severe than some models have implied, according to a new study which ratchets up the possible temperature rises and subsequent climatic impacts. The analysis by the US National Centre for Atmospheric Research (NCAR) found that climate model projections showing a greater rise in…

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