Uncategorized
- Earth
Cave formations yield seismic clues
Analyses of toppled stalagmites and other fallen rock formations in two Israeli caves may provide hints about the rate of ancient earthquakes in the area.
- Animals
Many fish run on empty
Many fish eat all the time, while some others spend their days going from brief feast to lengthy famine.
- Health & Medicine
Protein flags colon, prostate cancers
A compound first identified as a possible culprit in Huntington's disease may be an indicator of cancers of the prostate gland and colon.
- Animals
Singing frog in China evokes whales, primates
A frog in China warbles and flutes with such versatility that its high-pitched calls sound like those of birds or whales.
- Astronomy
Getting a Clear View
Outfitted with a mirror that flexes several hundred times a second to compensate for the blurring induced by Earth’s atmosphere, one of the world’s sharpest telescopes just got a whole lot sharper.
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19114
In this article, you state, “The first Fermat number is 22+1, or 5,” and later, “the first four Fermat numbers are prime, but [among] the rest, up to and now including the 24th, none are prime.” Almost all number theorists consider the first Fermat prime to be F0 = 220 + 1 = 3, so […]
- Math
Great Computations
From sifting through radio telescope signals for signs of extraterrestrial life to searching for record-breaking prime numbers, home and office computers contribute via the Internet to a variety of research efforts.
- Astronomy
Tidal tails tell tales of newborn galaxies
Some streams of gas and dust ripped out of large galaxies appear to form their own galaxies and may provide astronomers with a close-up view of galaxy formation.
- Physics
Glass may magnify ultrasmall-world oddities
A puzzling and unexpected response to magnetic fields suggests that certain glasses may exhibit a type of large-scale quantum mechanical behavior never seen before.
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Bt broccoli test: Refuges cut pest resistance
The first field test of a strategy for controlling insect resistance in a crop engineered to carry genes from the pesticide-producing bacterium Bacillus thuringiensis confirms the value of refuges in which some insects live without pesticide exposure.
- Health & Medicine
Antibodies fight Ebola virus in mouse test
Specially designed antibodies can thwart Ebola virus in mice by binding to a glycoprotein on the surface of virus-infected cells, suggesting a potential treatment for the lethal disease.
- Materials Science
Foamy polymers hit goal right on the nose
Biodegradable polymer foams made with a new technique can act as scaffolds for regenerating tissues that may someday be used as replacement body parts.
