ScienceDaily: Top Science News |
- Lab mimics Jupiter's Trojan asteroids inside a single atom
- Marine mammals on the menu in many parts of world
- New material to remove radioactive gas from spent nuclear fuel
- 'Speed gene' in modern racehorses originated from British mare 300 years ago, scientists claim
- Winged dinosaur Archaeopteryx dressed for flight
- Scientists discover new clue to chemical origins of life
- Neanderthals and their contemporaries engineered stone tools, anthropologists discover
- Ancient dinosaur nursery: Oldest nesting site yet found
- New breed of electron interactions in quantum systems
- Sunshade geoengineering more likely to improve global food security, research suggests
- Unprecedented, human-made trends in ocean's acidity
| Lab mimics Jupiter's Trojan asteroids inside a single atom Posted: 24 Jan 2012 01:23 PM PST Physicists have built an accurate model of part of the solar system inside a single atom. Scientists have shown that they could make an electron orbit the atomic nucleus in the same way that Jupiter's Trojan asteroids orbit the sun. The findings uphold a 1920 prediction by physicist Niels Bohr.  |
| Marine mammals on the menu in many parts of world Posted: 24 Jan 2012 12:19 PM PST The fate of the world's great whale species commands global attention as a result of heated debate between pro and anti-whaling advocates, but the fate of smaller marine mammals is less understood, specifically because the deliberate and accidental catching and killing of dolphins, porpoises, manatees, and other warm-blooded aquatic species are rarely studied or monitored.  |
| New material to remove radioactive gas from spent nuclear fuel Posted: 24 Jan 2012 11:03 AM PST Research by chemists could impact worldwide efforts to produce clean, safe nuclear energy and reduce radioactive waste. They have used metal-organic frameworks to capture and remove volatile radioactive gas from spent nuclear fuel.  |
| 'Speed gene' in modern racehorses originated from British mare 300 years ago, scientists claim Posted: 24 Jan 2012 11:01 AM PST Scientists have traced the origin of the 'speed gene' in Thoroughbred racehorses back to a single British mare that lived in the United Kingdom around 300 years ago.  |
| Winged dinosaur Archaeopteryx dressed for flight Posted: 24 Jan 2012 08:30 AM PST The iconic, winged dinosaur Archaeopteryx was dressed for flight, an international team of researchers has concluded. The group identified the color of the raven-sized creature's fossilized wing feather, determining it was black. The color and the structures that supplied the pigment suggest that Archaeopteryx's feathers were rigid and durable, which would have helped it to fly.  |
| Scientists discover new clue to chemical origins of life Posted: 24 Jan 2012 06:29 AM PST Organic chemists have made a significant advance towards establishing the origin of the carbohydrates (sugars) that form the building blocks of life. The researchers have re-created a process which could have occurred in the prebiotic world.  |
| Neanderthals and their contemporaries engineered stone tools, anthropologists discover Posted: 24 Jan 2012 06:27 AM PST New published research from anthropologists in the UK supports the long-held theory that early human ancestors across Africa, Western Asia and Europe engineered their stone tools.  |
| Ancient dinosaur nursery: Oldest nesting site yet found Posted: 23 Jan 2012 12:25 PM PST An excavation at a site in South Africa has unearthed the 190-million-year-old dinosaur nesting site of the prosauropod dinosaur Massospondylus -- revealing significant clues about the evolution of complex reproductive behavior in early dinosaurs.  |
| New breed of electron interactions in quantum systems Posted: 23 Jan 2012 06:48 AM PST Physicists have observed a new kind of interaction that can arise between electrons in a single-atom silicon transistor, offering a more complete understanding of the mechanisms that govern electron conduction in nano-structures at the atomic scale.  |
| Sunshade geoengineering more likely to improve global food security, research suggests Posted: 22 Jan 2012 12:26 PM PST Carbon dioxide emissions have been increasing over the past decades, causing Earth to get hotter and hotter. There are concerns that a continuation of these trends could have catastrophic effects. This has led some to explore drastic ideas for combating global warming, including the idea of counteracting it by reflecting sunlight away from the Earth. However, it has been suggested that reflecting sunlight away from Earth might itself threaten the food supply. New research examines the potential effects that geoengineering the climate could have on global food production and concludes that sunshade geoengineering would be more likely to improve rather than threaten food security.  |
| Unprecedented, human-made trends in ocean's acidity Posted: 22 Jan 2012 12:25 PM PST Recent carbon dioxide emissions have pushed the level of seawater acidity far above the range of the natural variability that existed for thousands of years, affecting the calcification rates of shell-forming organism.  |
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