Author Archives: Guest Post

IBM Honors the 25th Anniversary of High-Temperature Superconductivity

IBM scientists, J. Georg Bednorz and K. Alex Muller, discovered the first successful high-temperature superconductor using a breakthrough ceramic material

ZURICH – 18 Apr 2011: Twenty-five years ago IBM scientists, J. Georg Bednorz and K. Alex Muller altered the landscape of physics when they observed superconductivity in an oxide material at a temperature 50 percent higher(1), (-238 deg C, -397 deg F) than what was previously known. This discovery opened an entirely new chapter in the field of physics and earned them the Nobel Prize for Physics in 1987. (more…)

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Ancient Fossils Hold Clues for Predicting Future Climate Change, Scientists Report

By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth’s current levels of atmospheric carbon dioxide, a key contributor to global climate change. 

Two novel geochemical techniques used to determine the temperature at which the mollusk shells were formed suggest that summertime Arctic temperatures during the early Pliocene epoch (3.5 million to 4 million years ago) may have been a staggering 18 to 28 degrees Fahrenheit warmer than today. And these ancient fossils, harvested from deep within the Arctic Circle, may have once lived in an environment in which the polar ice cap melted completely during the summer months.  (more…)

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WISE Delivers Millions of Galaxies, Stars, Asteroids

Astronomers across the globe can now sift through hundreds of millions of galaxies, stars and asteroids collected in the first bundle of data from NASA’s Wide-field Infrared Survey Explorer (WISE) mission.

“Starting today thousands of new eyes will be looking at WISE data, and I expect many surprises,” said Edward (Ned) Wright of UCLA, the mission’s principal investigator. (more…)

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Crossing the Line: What Constitutes Torture?

Torture. The United Nations defines it as the “infliction of severe physical or mental pain or suffering.” But how severe is severe? That judgment determines whether or not the law classifies an interrogation practice as torture.

Now, a study published in an upcoming issue of Psychological Science, a journal of the Association for Psychological Science, condemns this method of classification as essentially flawed. The reason: The people estimating the severity of pain aren’t experiencing that pain—so they underestimate it.

As a result, many acts of torture are not classified—or prohibited—as torture, say authors, Loran F. Nordgren of Northwestern University’s Kellogg School of Management, Mary-Hunter Morris of Harvard Law School, and George Loewenstein of Carnegie Mellon University. (more…)

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Search for Dark Matter Narrowed by New Data From XENON100

*Collaboration reveals results from 100-day experiment*

Today, scientists from the XENON collaboration announced the result from their search for the elusive component of our universe known as dark matter. After analyzing one hundred days of data taken with the XENON100 experiment, they see no evidence for the existence of Weakly Interacting Massive Particles (WIMPs), the leading candidates for the mysterious dark matter. The XENON100 experiment is operated deep underground at the Gran Sasso National Laboratory of the Italian National Institute for Physics (INFN). (more…)

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