Archive for October, 2009

seismic-imageAn international team of researchers has created the most comprehensive seismic image of the portion of Earth’s crust and upper mantle that lies beneath the Himalayas, a process that has led to the discovery of some unusual geological features that could explain the evolution of the region.

The findings of this equipment help to explain the formation of the world’s largest mountain range, which is still growing.

Researchers have found that as the plates collide India and Eurasia, the lower crust of India slides beneath the crust of Tibet, while the underlying portion of the upper mantle is separated from the cortex and diffuse sinks. (more…)

 
Tuesday, October 20th, 2009

Imagine a sensor device the size of a postage stamp that can sniff out poisons and poisonous gases acquaintances, and display the results simply changing colors. This new technology is possible and is already working on its development. electronic-nose

Once completed it, the sensor could be useful for detecting high exposures to toxic industrial chemicals that pose serious health hazards to people in jobs or in other situations. The researchers hope to market the sensor in a few years. The user would take place, as a pin or a badge. (more…)

 

A fossil shells of land snail found in ancient soils of the Canary Islands show that the Spanish archipelago off the northwest coast of Africa has become increasingly dry during the past 50,000 years.
canary-islandsLand snail shells are abundant, and sensitive to environmental changes, such as fossils, are well preserved. Measurements of changes in the ratios of oxygen isotopes in fossil shells can provide information on changes in ancient climate.

The isotopic analysis performed on fossil shells of land snail from the Canary Islands show oxygen isotope ratios suggest that the relative humidity was higher in the islands 50,000 years ago. This is the interpretation of the results have made the study’s authors, Yurena Yanes and Crayton J. Yapp, both the Department of Earth Sciences at Southern Methodist University in Dallas, Texas. (more…)

 
Saturday, October 10th, 2009

Gerardine Botte had an idea while returning by car to his home after a seminar on the technology of fuel cells. His idea was to point the electrolysis of water, a process used to produce hydrogen energy from water. Botte, professor of chemical and bio-molecular engineering at the University of Ohio, took the concept to the next level: Instead of clean water, what if it was possible to use sewage?
botte
By removing ammonia from waste water, process and extract energy from hydrogen. This would bring about two things: clean the dirty water and clean energy. (more…)

 

A team of scientists from Dartmouth College offers a new way to create in the laboratory a black hole, although much smaller than their counterparts cosmic.
black holes

The new method to create a tiny black hole quantum size would allow researchers to understand better what the physicist Stephen Hawking proposed more than 35 years: that black holes are not totally devoid of activity; emit photons, in what is now called Hawking radiation. (more…)

 

New research suggests one possible location Antarctic ice seemed to be missing a key point in the history of climate 34 million years ago.

hidden-ice

Using data from previous geological studies, Douglas S. Wilson and Bruce Luyendyk, both from the University of California at Santa Barbara, have built a model of the topography of the bedrock of West Antarctica as it began the transition of the global climate that led to the accumulation of Antarctic ice which still today there remains a considerable part. (more…)