Uncategorized
- Planetary Science
Messages from Mercury
The latest data from a NASA spacecraft give compositional clues and reveal craters that could hold frozen water
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From the Archive: Carp eat other fish out
History repeats with another round of carp invasion.
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Evolution’s Wedges
Finding the genes that drive one species into two.
- Earth
Death of a Continent, Birth of an Ocean
Africa’s Afar region gives glimpses of geology in action.
- Health & Medicine
Mind-Controlled
Linking brain and computer may soon lead to practical prosthetics for daily life.
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Science Past from the issue of July 1, 1961
WINTERGREEN VS. ALMOND IN ODOR PENETRATION TEST — Different chemicals produce different odors because vibrations within the molecules are different. This is the theory of Dr. R.H. Wright of the British Columbia Research Council in Vancouver, Canada. He compared nitrobenzene, which has an almond smell, and methyl salicylate, which smells like wintergreen. Both these substances […]
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Science Future for July 2, 2011
July 7Be mesmerized by the color red and how it is made for pigments and paints, at San Francisco’s Exploratorium. Ages 18 and up. See www.exploratorium.edu/afterdark July 18In Washington, D.C., a Smithsonian science historian describes ancient apothecaries and their brews. See www.residentassociates.org
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Letters
Your cosmic questions Regarding the “The vital statistics” in “Cosmic questions, answers pending” (SN: 4/23/11, p. 20), I was puzzled by two values: 13.75 billion years (time since the Big Bang) and 90 billion light-years (diameter of the universe). If light has been streaming away for 13.75 billion years, then shouldn’t the diameter of the […]
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BOOK REVIEW: Annoying: The Science of What Bugs Us by Joe Palca and Flora Lichtman
Review by Devin Powell.
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The Dance of Air and Sea: How Oceans, Weather, and Life Link Together by Arnold H. Taylor
An oceanographer explores the connectedness of the seas, atmosphere and weather, with implications for climate change. Oxford Univ. Press, 2011, 288 p., $29.95.
