Uncategorized
- Math
Questionable Numbers for a Questionable Remedy
Echinacea might be useful as a cold remedy or preventative, but science hasn't shown it yet.
- Humans
Letters from the December 22 & 29, 2007, issue of Science News
Amylase with your veggies Your article (“Advantage: Starch,” SN: 9/15/07, p. 173) notes how groups of people may have different numbers of copies of the amylase gene. Is it correct then that individuals have varying numbers of the gene as well? If so, would this explain why some people don’t like meat and become vegetarians […]
- Health & Medicine
Vitamin D: Blacks need much more
To achieve healthy concentrations of vitamin D, many African-Americans may need hefty daily supplementation.
- Humans
Fishing curbs can lead to profit
New economic models suggest that fishing crews that cut back long enough to let stocks rebound will find compensation in higher profits later.
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Macho pheromones rile fellows
Pheromones that induce aggression in other male mice are found in the major urinary protein complex in the animals' urine.
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- Math
Tied Up in Knots
Physicists have shown that tumbled strings will form surprisingly complex knots, helping explain how knots spontaneously form in nature.
- 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.
- 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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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 […]
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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.
