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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.
