science + technology news

Two Pakistanis provided Twitter followers first accounts of bin Laden raid

May 3, 2011

In a dramatic tweet-by-tweet account, Sohaib Athar and Mohsin Shah gave their Twitter followers live coverage of the middle-of-the-night raid on Osama bin Laden’s compound in Pakistan, illustrating the rising importance  — and limits — of online social networks.

Athar and Shah began sending out tweets shortly before 1 a.m. in Pakistan, documenting abnormal helicopter flybys, a copter crash, and then an explosion.

“Helicopter hovering above Abbottabad at… read more

DNA as Destiny

October 31, 2002

DNA is not only the book of life; it’s also the book of death. In the future we may be able to read it cover to cover. Here’s a first-hand account of what it’s like to take the world’s first top-to-bottom gene scan. “Everyone has errors in his or her DNA, glitches that may trigger a heart spasm or cause a brain tumor. I’m here to learn mine.” It may… read more

First acoustic metamaterial ‘superlens’ created

June 25, 2009

The world’s first acoustic “superlens,” which could lead to high-resolution ultrasound imaging, non-destructive structural testing of buildings and bridges, and novel underwater stealth technology, has been developed by researchers at the University of Illinois at Urbana-Champaign.

How Our Genomes Control Diversity

February 6, 2008

Two research efforts have determined DNA recombination mechanisms that underlie population diversity, both how it happens and where in the genetic code it occurs.

In one study, University of Chicago scientists examined patterns in DNA recombination, the process by which a person’s genome is consolidated into one set of chromosomes to pass onto an offspring. In the other study from deCODE genetics, a link was made between variants of… read more

University of Denmark Scientists Develop Hydrogen Tablet

September 23, 2005

Scientists at the Technical University of Denmark have invented a technology which may be an important step towards the hydrogen economy: a hydrogen tablet that effectively stores hydrogen in an inexpensive and safe material in solid form: in ammonia absorbed efficiently in sea salt.

Pentagonal tiles pave the way towards organic electronics

May 9, 2011

Pentagonal Tiles

Measurements for a new class of organic thin film used for nanoscale self-assembly of organic building blocks for ultra-small electronics have been reported by an interdisciplinary team at the University of Cambridge and Rutgers University.

In this new class of organic thin film, cyclopentadienyl molecules (C5H5) receive significant electronic charge from the surface, yet diffuse easily across the surface and show interactions with… read more

Man: 0 Machine: 1

November 15, 2002

Feng-Hsiung Hsu, who worked tirelessly for almost two decades to build IBM’s Deep Blue chess computer, demonstrates in “Behind Deep Blue” that the computer’s victory was not a matter of machine defeating man, but rather the advancement of a powerful tool assembled by human beings.

Sea level rise: It’s worse than we thought

July 2, 2009

The continued melting of glaciers and ice caps outside of Greenland and Antarctica will add another 10 to 20 centimeters to sea level by 2100, according to one report.

New ‘magnonic’ holographic memory device could improve speech and image recognition

May 14, 2015

magnonic holographic memory ft.

Researchers at the University of California, Riverside Bourns College of Engineering and the Russian Academy of Sciences have demonstrated a new type of pattern recognition using a “magnonic” holographic memory device, intended to improve hardware for speech and image recognition.

The device is based on patterns of sound and images that are encoded into the phase (timing) of spin waves, which are collective oscillations of… read more

Company claims to have sequenced man’s genome cheaply

February 11, 2008

Illumina, based in San Diego, claims to have sequenced DNA from the genome of an anonymous African man in “a matter of weeks” for $100,000.

However, supporting data is not yet available.

Experts Give Scientists Roadmap on Nanotechnology Research

October 7, 2005

Toxicologists studying human health effects of nanomaterials now have a broad roadmap from a government-sponsored panel of experts on how to proceed.

Producing central nervous system cells from neural stem cells

May 13, 2011

Neural Stem Cells

Central nervous system cells from neural stem cells of the peripheral nervous system have been produced by researchers at the Max Planck Institute for Brain Research in Frankfurt and the Max Planck Institute of Immunobiology and Epigenetics in Freiburg.

The researchers exposed stem cells from the peripheral nervous system of embryonic or postnatal mice to different culture conditions. Neural crest stem cells also… read more

Stem Cell Mixing May Form a Human-Mouse Hybrid

November 27, 2002

Proposed stem cell experiments would involve creating a human-mouse hybrid to test different lines of human embryonic stem cells for their quality and potential usefulness in treating specific diseases.

Any animals born from the experiment would be chimeras — organisms that are mixtures of two kinds of cells, such as a mouse with a brain made entirely of human cells or a mouse that generated human sperm. However, Dr.… read more

A Robot That’s Learning to Smile

July 13, 2009
(USCD)

Researchers at the University of California, San Diego (UCSD) have given the realistic-looking robot Einstein the ability to improve its own expressions through learning.

Carbon Capture Strategy Could Lead To Emission-free Cars

February 14, 2008

Researchers at the Georgia Institute of Technology have developed a strategy to capture, store and eventually recycle carbon from vehicles.

They envision a transportation system completely free of fossil fuels.

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