News
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Small Wonder: Microbial hitchhiker has few genes
Scientists have identified a microbe with remarkably few genes living on another microbe on the ocean floor.
- Earth
In case of temblor, run downhill
Computer models of the ground motions measured on a shallow hill during an earthquake suggest that, in certain circumstances, the ground movements could be magnified by as much as 10 times those measured on flat areas nearby.
- Humans
In USSR, generals did it by the numbers
A statistical analysis of the dates and times of Soviet underground nuclear tests suggests that the favorite numbers of the test-site commander may have had a significant influence upon the precise timing of the detonations.
- Earth
Monitors get weird vibes from Antarctic
In late 2000, seismometers on islands in the South Pacific picked up vibrations that were eventually traced to a large iceberg drifting in the Ross Sea north of Antarctica.
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Brain keeps tabs on arbitrary patterns
Several parts of the frontal brain cooperatively identify apparent regularities in random sequences of events and detect breaks in those patterns.
- Earth
Symbionts affect coral’s chemistry
The presence of symbiotic organisms in the tiny animals that build coral reefs changes the rates at which the animals take in minerals from the water, a finding that may affect the results of many research projects that have used chemical analyses of coral remains to infer past sea-surface temperatures.
- Astronomy
Elliptical duet rides the Kuiper belt
Follow-up observations of an icy object in the Kuiper belt and its moon reveal that the two bodies revolve about each other in the most elongated orbit of any pair of objects in the solar system.
- Health & Medicine
Virus gives cancer the cold treatment
A genetically engineered version of a common cold virus appears to kill cancer cells without harming healthy tissue.
- Physics
Not-So-Neutral Neutron: Clearer view of neutron reveals charged locales
A sharp, new picture of the neutron reveals that rather than being uniformly electrically neutral, the particle contains regions of positive and negative charge.
- Materials Science
Self-Sutures: New material knots up on its own
Researchers have used a new biodegradable material to make surgical sutures that knot and tighten themselves as they warm to body temperature.
- Anthropology
Attack of the Ancestor: Neandertals took a stab at violent assaults
The pieced-together fragments of a 36,000-year-old Neandertal skull reveal a bony scar caused by a blow from a sharp tool or weapon.
- Health & Medicine
Deadly Pickup: Enzyme permits plague germ to ride in fleas
Acquisition of a gene that enables the plague bacterium to live inside blood-sucking fleas may have set the stage for the Black Death.
