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Wednesday, January 11, 2012

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News

Astronomers pinpoint launch of 'bullets' in a black hole's jet

Posted: 10 Jan 2012 02:34 PM PST

Astronomers have identified the moment when a black hole in our galaxy launched super-fast knots of gas into space. Racing outward at about one-quarter the speed of light, these "bullets" of ionized gas are thought to arise from a region located just outside the black hole's event horizon, the point beyond which nothing can escape.

Before they were stars: New image shows space nursery

Posted: 10 Jan 2012 01:34 PM PST

The stars we see today weren't always as serene as they appear, floating alone in the dark of night. Most stars, likely including our sun, grew up in cosmic turmoil -- as illustrated in a new image from NASA's Spitzer Space Telescope. The image shows one of the most active and turbulent regions of star birth in our galaxy, a region called Cygnus X.

Healing the iPhone's wounds

Posted: 10 Jan 2012 12:17 PM PST

Scientists propose a "repair-and-go" approach to fixing malfunctions caused by small-surface cracks on any digital device or part before it hits store shelves.

Quick-cooking nanomaterials in microwave to make tomorrow's air conditioners

Posted: 10 Jan 2012 11:04 AM PST

Engineering researchers have developed a new method for creating advanced nanomaterials that could lead to highly efficient refrigerators and cooling systems requiring no refrigerants and no moving parts. The key ingredients for this innovation are a dash of nanoscale sulfur and a normal, everyday microwave oven.

El Gordo: A 'fat' distant galaxy cluster

Posted: 10 Jan 2012 11:04 AM PST

An extremely hot, massive young galaxy cluster is the largest ever seen in the distant universe. The newly discovered galaxy cluster has been nicknamed El Gordo -- the "big" or "fat one" in Spanish. It consists of two separate galaxy subclusters colliding at several million kilometres per hour, and is so far away that its light has travelled for seven billion years to reach Earth.

Backing out of the nanotunnel

Posted: 10 Jan 2012 08:45 AM PST

Nanopores provide a versatile tool for probing molecular structures. A new study shows that one can obtain more detailed information about the dynamic behavior of nucleic acids during passage through nanopores by directing them to asymmetric pores for the return journey.

Swallow a pill and let your doctor tour your insides

Posted: 10 Jan 2012 08:44 AM PST

Researchers have successfully tested a controllable endoscopic capsule, inspired by science fiction, that has the ability to "swim" through the body and could provide clinicians with unprecedented control when photographing the inside of the human body.

Farthest developing galaxy cluster ever found

Posted: 10 Jan 2012 08:43 AM PST

NASA's Hubble Space Telescope has uncovered a cluster of galaxies in the initial stages of construction — the most distant such grouping ever observed in the early universe. In a random sky survey made in near-infrared light, Hubble spied five tiny galaxies clustered together 13.1 billion light-years away. They are among the brightest galaxies at that epoch and very young, existing just 600 million years after the universe's birth in the big bang.

Metal oxide simulations could help green technology

Posted: 10 Jan 2012 07:21 AM PST

Researchers have proposed a radical new way of thinking about the chemical reactions between water and metal oxides, the most common minerals on Earth. The new paradigm could lead to a better understanding of corrosion and how toxic minerals leach from rocks and soil. It could also help in the development of "green" technology: new types of batteries, or catalysts for splitting water to produce hydrogen fuel.
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