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18971
In the photograph of X-ray jets and point sources in the galaxy Centaurus A, shown in “Shocks jolt jet set galaxy, X rays reveal,” many of the point sources seem to be regularly spaced along arcs. The pattern is reminiscent of an X-ray diffraction pattern from a crystal (a microscopic event mirrored here on a […]
- Astronomy
Shocks jolt jet set galaxy, X rays reveal
A new image of the nearby galaxy Centaurus A reveals the first details of a phenomenon associated with the core of many galaxies: a huge jet of high-energy particles shooting out from a supermassive black hole.
- Animals
20/20 lenses coat body of sea creature
The skeleton of brittlestars doubles as an array of optically precise lenses that rival plastic microlenses designed by engineers.
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Psychopaths may come in two varieties
Preliminary evidence suggests that some psychopaths, who exploit others and commit crimes without guilt or remorse, avoid criminal conviction by relying on a heightened emotional sensitivity to risky situations.
- Ecosystems
Streamers could save birds from hooks
A test on active longline fishing boats finds that an inexpensive array of streamers can reduce accidental deaths of seabirds by more than 90 percent.
- Physics
Window Opens into Strange Nuclei
By creating peculiar atomic nuclei that contain not just protons and neutrons but also pairs of rare nuclear particles with so-called strange quarks inside, researchers are shedding new light on the fundamental structure of matter and how it behaves under extreme conditions, as in neutron stars.
- Chemistry
Carbon-70 fullerenes finally link up
Researchers have coaxed the cage-like molecules of carbon-70 into zigzagging polymers.
- Chemistry
Chemists make molecules with less mess
Researchers have found a way for a widely used, commercially important chemical reaction to produce less pollution.
- Chemistry
Chemistry of Colors and Curls
Chemists are using new technology and experiments to discover how hair becomes damaged and how to protect it.
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Door to Antiquity
The Phimai temple complex in Thailand was an important Khmer economic, religious, and military center about 1,000 years ago. Richard M. Levy of the University of Calgary has created an elaborate computer reconstruction of this historic site, allowing visitors to wander the complex without traveling all the way to Thailand. Go to: http://www.phimai.ca/
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From the August 22, 1931, issue
THE GIRL ON THE COVER Her name is Janet Penserosa. She is about four years old and her home is at the New York Zoological Park. And now she can claim the distinction of being the first female gorilla to survive in Gothams animal center. Not only that, but she is probably the only gorilla […]
- Computing
New initiatives scale up supercomputing
Several government efforts aim to give researchers access to computing power in the range of 12 trillion operations per second or more.
