ScienceDaily: Top Science News |
- Cutting the cord on soft robots: Machine walks through snow, flames and can be run over by cars
- Unraveling mysteries of the Venusian atmosphere
- 15 years of carbon dioxide emissions on Earth mapped
- Simple method turns human skin cells into immune strengthening white blood cells
- Scientists report first semiaquatic dinosaur, Spinosaurus: Massive predator was more than 9 feet longer than largest T. rex
- Ceramics don't have to be brittle: Incredibly light, strong materials recover original shape after being smashed
- 'Hot Jupiters' provoke their own host suns to wobble
- 'Talking' and 'listening' to atoms: Scientists make acoustic waves couple to an artificial atom
- Scientists revert human stem cells to pristine state
- Brain differences: Sometimes, adolescents just can't resist
- Neurochemical imbalance in schizophrenia discovered
- Breast milk reveals a correlation between dietary fats and academic success
- World's largest DNA origami created
- Lurking bright blue star caught: The last piece of a supernova puzzle
- Last decade's slowdown in global warming enhanced by an unusual climate anomaly
- Eagle-eyed birds of prey help scrounging vultures find their dinner
| Cutting the cord on soft robots: Machine walks through snow, flames and can be run over by cars Posted: 11 Sep 2014 03:07 PM PDT Engineers have developed the world's first untethered soft robot -- and demonstrated that the quadruped, which can literally stand up and walk away from its designers, can walk through snow, fire and even be run over by a car. The hope is that such robots might one day serve as a search and rescue tool following disasters. |
| Unraveling mysteries of the Venusian atmosphere Posted: 11 Sep 2014 03:07 PM PDT Underscoring the vast differences between Earth and its neighbor Venus, new research shows a glimpse of giant holes in the electrically charged layer of the Venusian atmosphere, called the ionosphere. The observations point to a more complicated magnetic environment than previously thought -- which in turn helps us better understand this neighboring, rocky planet. |
| 15 years of carbon dioxide emissions on Earth mapped Posted: 11 Sep 2014 12:18 PM PDT Scientists have developed a new approach to estimate carbon dioxide emissions from burning fossil fuels -- one that provides crucial information to policymakers. Called the 'Fossil Fuel Data Assimilation System,' this system was used to quantify 15 years of carbon dioxide emissions, every hour, for the entire planet -- down to the city scale. Until now, scientists have estimated greenhouse gas emissions at courser scales or used less reliable techniques. |
| Simple method turns human skin cells into immune strengthening white blood cells Posted: 11 Sep 2014 11:27 AM PDT For the first time, scientists have turned human skin cells into transplantable white blood cells, soldiers of the immune system that fight infections and invaders. The work could let researchers create therapies that introduce into the body new white blood cells capable of attacking diseased or cancerous cells or augmenting immune responses against other disorders. |
| Posted: 11 Sep 2014 11:27 AM PDT Scientists today unveiled what appears to be the first truly semiaquatic dinosaur, Spinosaurus aegyptiacus. New fossils of the massive Cretaceous-era predator reveal it adapted to life in the water some 95 million years ago, providing the most compelling evidence to date of a dinosaur able to live and hunt in an aquatic environment. The fossils also indicate that Spinosaurus was the largest known predatory dinosaur to roam the Earth, measuring more than nine feet longer than the world's largest Tyrannosaurus rex specimen. |
| Posted: 11 Sep 2014 10:54 AM PDT Materials scientists have developed a method for creating new structural materials by taking advantage of the unusual properties that solids can have at the nanometer scale. They have used the method to produce a ceramic (e.g., a piece of chalk or a brick) that contains about 99.9 percent air yet is incredibly strong and can recover its original shape after being smashed by more than 50 percent. |
| 'Hot Jupiters' provoke their own host suns to wobble Posted: 11 Sep 2014 10:54 AM PDT Blame the 'hot Jupiters.' These large, gaseous exoplanets can make their suns wobble when they wend their way through their own solar systems to snuggle up against their suns, according to new research. |
| 'Talking' and 'listening' to atoms: Scientists make acoustic waves couple to an artificial atom Posted: 11 Sep 2014 10:54 AM PDT Scientists have used sound to communicate with an artificial atom. They can thereby demonstrate phenomena from quantum physics with sound taking on the role of light. |
| Scientists revert human stem cells to pristine state Posted: 11 Sep 2014 09:50 AM PDT Researchers have resolved a long-standing challenge in stem cell biology by successfully 'resetting' human pluripotent stem cells to a fully pristine state, at a point of their greatest developmental potential. |
| Brain differences: Sometimes, adolescents just can't resist Posted: 11 Sep 2014 09:45 AM PDT A new study finds teenagers are far more sensitive than adults to the immediate effect or reward of their behaviors. Even when a behavior is no longer in a teenager's best interest to continue, they will because the effect of the reward is still there and lasts much longer in adolescents than in adults. |
| Neurochemical imbalance in schizophrenia discovered Posted: 11 Sep 2014 09:42 AM PDT Using human induced pluripotent stem cells (hiPSCs), researchers have discovered that neurons from patients with schizophrenia secrete higher amounts of three neurotransmitters broadly implicated in a range of psychiatric disorders. |
| Breast milk reveals a correlation between dietary fats and academic success Posted: 11 Sep 2014 06:47 AM PDT You are what you eat, the saying goes, and now a study suggests that the oft-repeated adage applies not just to physical health, but to brain power as well. Researchers compared the fatty acid profiles of breast milk from women in over two dozen countries with how well children from those same countries performed on academic tests. Their findings show that the amount of omega-3 docosahexaenoic acid (DHA) in a mother's milk is the strongest predictor of test performance. It outweighs national income and the number of dollars spent per pupil in schools. |
| World's largest DNA origami created Posted: 11 Sep 2014 06:47 AM PDT Researchers have created the world's largest DNA origami, which are nanoscale constructions with applications ranging from biomedical research to nanoelectronics. DNA origami are self-assembling biochemical structures that are made up of two types of DNA. |
| Lurking bright blue star caught: The last piece of a supernova puzzle Posted: 11 Sep 2014 06:47 AM PDT Astronomers have found evidence of a hot binary companion star to a yellow supergiant star, which had become a bright supernova. Its existence had been predicted by the team. This finding provides the last link in a chain of observations that have so far supported the team's theoretical picture for this supernova. |
| Last decade's slowdown in global warming enhanced by an unusual climate anomaly Posted: 11 Sep 2014 06:29 AM PDT A hiatus in global warming ongoing since 2001 is due to a combination of a natural cooling phase, known as multidecadal variability (MDV) and a downturn of the secular warming trend. The exact causes of the latter, unique in the entire observational record going back to 1850, are still to be identified, according to a new article. |
| Eagle-eyed birds of prey help scrounging vultures find their dinner Posted: 09 Sep 2014 04:20 PM PDT Zoologists have discovered how endangered vultures find their food, which will have important applications for their conservation. It turns out the iconic birds, which look like they belong in a former world dominated by dinosaurs, use social cues from birds of prey to locate food before swooping down in large groups to steal the freshest of 'ready meals.' |
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