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Saturday, October 6, 2012

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


NASA's Swift satellite discovers a new black hole in Milky Way galaxy

Posted: 05 Oct 2012 01:28 PM PDT

NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the presence of a previously unknown stellar-mass black hole.

Hubble sees cosmic riches

Posted: 05 Oct 2012 10:44 AM PDT

A dazzling new image shows the globular cluster Messier 69, or M 69 for short, as viewed through the NASA/ESA Hubble Space Telescope. Globular clusters are dense collections of old stars. In this picture, foreground stars look big and golden when set against the backdrop of the thousands of white, silvery stars that make up M 69.

Training computers to understand the human brain

Posted: 05 Oct 2012 10:43 AM PDT

Researchers use fMRI datasets to train a computer to predict the semantic category of an image originally viewed by five different people.

What number is halfway between 1 and 9? Is it 5 -- or 3?

Posted: 05 Oct 2012 09:38 AM PDT

A new information-theoretical model of human sensory perception and memory sheds light on some peculiarities of the nervous system.

How order arises from the random motion of particles in the cosmos

Posted: 05 Oct 2012 06:29 AM PDT

One of the unsolved mysteries of contemporary science is how highly organized structures can emerge from the random motion of particles. This applies to many situations ranging from astrophysical objects that extend over millions of light years to the birth of life on Earth.

Freezing water droplets form sharp ice peaks

Posted: 05 Oct 2012 06:29 AM PDT

Photos reveal how water droplets placed on a cold surface freeze to a sharp point that sprouts a "forest" of tree-like ice crystals.

More efficient all-organic catalysts in fuel cells

Posted: 05 Oct 2012 05:25 AM PDT

Organic catalysts are a breakthrough in the quest for inexpensive and efficient materials for environmentally friendly production of energy in fuel cells. A new study provides better knowledge about key processes in producing these catalysts.

Mass of dark matter revealed by precise measurements of the galaxy

Posted: 05 Oct 2012 05:25 AM PDT

Astronomers have succeeded in precisely determining the astronomical yardstick for the Galaxy based upon precise distance measurements from advanced radio telescopes. The new findings are that the distance from the sun to the Galactic center is 26,100 light-years, and that the Galactic rotation velocity in the solar system is 240km/s.

Asteroid fragments could hint at the origin of the solar system

Posted: 04 Oct 2012 05:10 PM PDT

Scientists are analyzing minute asteroid fragments which could shed light on the origin and evolution of the solar system.

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