Uncategorized
- Earth
Dead Serious
Little progress has been made this decade in reducing the size of the Gulf of Mexico's dead zone, a massive area of oxygen-depleted water caused by agricultural and urban runoff.
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19910
I believe that the term declination was used in error in this article. On any nautical navigation chart the difference between magnetic and true north is called “variation.” Declination has always been the angle from the horizon to a point higher into the sky. Bob NickelsonKing and Queen Court House, Va. While navigators use the […]
- Earth
North by Northwest
The Earth's magnetic poles wander around quite a bit, a phenomenon that occasionally confounded ancient explorers but is proving useful for today's archaeologists.
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My DNA Project
Having trouble cracking the code that geneticists use to describe new molecular advances in health and medicine? Well, researchers at the University of Massachusetts have developed a program aimed at helping the public acquire the tools—including vocabulary, and background information—necessary to “become comfortable with genome issues, and to learn how to take advantage of the […]
- Humans
From the December 11, 1937, issue
A sturdy new building for a mountaintop weather station, proving the authenticity of a treasure, and tracking cosmic rays underground.
- Physics
Light Swell: Optical rogue waves resemble oceanic ones
Signals in optical fibers can combine into rare, short-lived spikes that resemble oceanic rogue waves.
- Astronomy
Run of the Mill: Finding galactic building blocks in early universe
Astronomers have discovered 27 faint, run-of-the-mill galaxies from the early universe that may be some of the building blocks of giant galaxies such as the Milky Way.
- Astronomy
Stellar Opposites: Sky survey reveals new halo of stars
The Milky Way galaxy possesses a distinct outer halo that orbits in the opposite direction from its inner halo and the rest of the galaxy.
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Pulling Together: Mitotic ring self-assembly revealed
A ring of proteins forms around the "waistlines" of cells to contract and split the cells in two, and scientists have now discovered how that ring self-assembles.
- Animals
Hatch a Thief: Brains incline birds toward a life of crime
When it comes to a bird family's propensity to pilfer, a larger than usual brain for a particular body size is more important than body size alone.
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19909
The photo illustrated in this article does not show a golden eagle. The bill of a golden eagle is black on the outer half and pale blue at the base, and the feathers on the back of its head are bright tawny. It could be a white-tailed eagle, a very close relative of the bald […]
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