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Wednesday, April 24, 2013

ScienceDaily: Top Science News

ScienceDaily: Top Science News


Robot & baby sea turtles reveal principles of motion

Posted: 23 Apr 2013 06:17 PM PDT

Based on a study of both hatchling sea turtles and "FlipperBot" -- a robot with flippers -- researchers have learned principles for how both robots and turtles move on granular surfaces such as sand.

Children routinely injured or killed by guns, U.S. study shows

Posted: 23 Apr 2013 01:19 PM PDT

While gun control issues usually surface after major incidents like the fatal shooting of 20 elementary school students in Newtown, Connecticut, a new U.S. study shows that children are routinely killed or injured by firearms.

Galaxy goes green in burning stellar fuel

Posted: 23 Apr 2013 12:37 PM PDT

Astronomers have spotted the "greenest" of galaxies, one that converts fuel into stars with almost 100-percent efficiency. The findings come from NASA's Wide-field Infrared Survey Explorer (WISE), NASA's Hubble Space Telescope and the IRAM Plateau de Bure interferometer in the French Alps.

Hundreds of tiny untethered surgical tools deployed in first animal biopsies

Posted: 23 Apr 2013 10:58 AM PDT

Using swarms of untethered grippers, each as small as a speck of dust, engineers and physicians have devised a new way to perform biopsies that could provide a more effective way to access narrow conduits in the body as well as find early signs of cancer or other diseases.

Asian monsoon is getting predictable: Strong correlation between summer monsoon and preceding climate pattern

Posted: 23 Apr 2013 10:58 AM PDT

For much of Asia, the pace of life is tuned to rhythms of monsoons. Its variations can mean the difference between drought and flood. Now a new study reports on a crucial connection that could drastically improve the ability of forecasters to reliably predict the monsoon a few months in advance.

Infants' sweat response predicts aggressive behavior as toddlers

Posted: 23 Apr 2013 10:57 AM PDT

Infants who sweat less in response to scary situations at age 1 show more physical and verbal aggression at age 3, according to new research.

Light bursts out of a flying mirror

Posted: 23 Apr 2013 10:41 AM PDT

Researchers have succeeded in generating flashes of extreme ultraviolet radiation via the reflection from a mirror that moves close to the speed of light.

Ancient DNA reveals Europe's dynamic genetic history

Posted: 23 Apr 2013 10:40 AM PDT

Ancient DNA recovered from a series of skeletons in central Germany up to 7,500 years old has been used to reconstruct the first detailed genetic history of modern Europe.

Iron in primeval seas rusted by bacteria

Posted: 23 Apr 2013 08:07 AM PDT

Researchers have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known deposits -- in South Africa and Australia -- are geological formations billions of years old. They are mainly composed of iron oxides -- minerals we know from the rusting process. These iron ores not only make up most of the world demand for iron -- the formations also help us to better understand the evolution of the atmosphere and climate, and provide important information on the activity of microorganisms in the early history of life on Earth.

Jupiter's atmosphere still contains water supplied by the Shoemaker-Levy 9 comet impact

Posted: 23 Apr 2013 07:23 AM PDT

Researchers are reporting Herschel observations of water in Jupiter's stratosphere. It is a clear remnant of the Shoemaker-Levy 9 comet impact on Jupiter nearly 20 years ago.

Rescue me: New study finds animals do recover from neglect

Posted: 23 Apr 2013 06:11 AM PDT

Animal sanctuaries can play an important role in rehabilitating goats and other animals that have suffered from neglect, according to scientists.

Humans feel empathy for robots: fMRI scans show similar brain function when robots are treated the same as humans

Posted: 23 Apr 2013 06:11 AM PDT

How do we really feel about non-sentient objects on a human level? A recent study found that humans have similar brain function when shown images of affection and violence being inflicted on robots and humans.

Decoding touch: Rats detect textures with their whiskers

Posted: 23 Apr 2013 06:09 AM PDT

With their whiskers rats can detect the texture of objects in the same way as humans do using their fingertips. A new study shows that it is possible to understand what specific object has been touched by a rat by observing the activation of brain neurons. A further step towards understanding how the brain, also in humans, represents the outside world.

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