Uncategorized
- Earth
Grand Canyon fish seem to be rebounding
The population of humpback chub, an endangered fish found only in the Colorado River and its tributaries, may be stabilizing in some sections of the Grand Canyon.
- Animals
Seabirds take record summer vacations
Sooty shearwaters that breed in New Zealand have set a new record for off-season travel, covering 64,000 kilometers between visits to their mating ground.
- Tech
Nanotubes signal when engine oil needs changing
A new, easy-to-fabricate sensor made from carbon nanotubes detects when automobile-engine oil needs replacement.
- Tech
Hydrogen hopes in carbon shells
Lithium atoms added to buckyball surfaces bestow on these molecules a remarkable capacity to store hydrogen.
- Earth
Air conditioning could heat the world
Global warming predicted for the coming decades may decrease winter heating bills in some parts of the United States, but producing the extra electricity needed for summertime air conditioning will create increased emissions of planet-warming carbon dioxide.
- Physics
On-chip lamp scores a bull’s-eye
Etching nanoscale, concentric ridges around a lamp-on-a-chip known as a light-emitting diode, or LED, brightens the device's glow seven-fold.
- Earth
Rogue alga routed
An invasive-species action team has eradicated one of the world's worst weeds, a marine alga, from a California lagoon, its only known foothold in North America.
- Health & Medicine
The Screen Team
New and experimental methods of screening for colorectal cancer that patients find less unpleasant than current tests could take a bite out of the malignancy's toll.
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19720
I have a question concerning this article. It says, “As the sun rotates, its polar regions make a complete circle in about 34 days, compared with the 25 days required by its equator.” I was wondering how it’s possible to have two points on a rotating body take different amounts of time to make a […]
- Astronomy
The Sun’s Halo in 3-D
A new computer map of the sun's outer atmosphere and spacecraft ready for launch are expected to shed new light on the origin of solar eruptions and provide more accurate warning of their impact on Earth.
- Humans
Letters from the August 19, 2006, issue of Science News
Aye carumba Math isn’t the only science that makes it into The Simpsons (“Springfield Theory,” SN: 6/10/06, p. 360). In one episode a few years ago, a meteorite landed near Bart. He picked it up and put it in his pocket. Although most people are under the impression that meteorites are extremely hot, they’re not. […]
- Math
Lake Wobegon Averages
Computing average class size can give different answers that depend on your point of view.
