Letters to the Editor
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19469
This article dealt with the alteration of the nuclear decay rate of beryllium-7. I believe you may have misinterpreted the researchers to be saying they had found “the largest such artificial hastening of an atom’s decay rate ever observed.” Whereas you report the authors observing a 0.83 percent change, I published a paper in Physical […]
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19468
This article mentions that the traffic volume was reduced following the attacks, yet fails to mention another likely factor in the increased deaths: Less traffic usually results in higher average speeds. Del DietrichSan Jose, Calif.
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19467
I found both your articles on vitamin D very interesting. My question now is whether the rays received in a tanning bed can cause the skin to manufacture vitamin D. Wendy WadeKalamazoo, Mich. Ultraviolet–B radiation triggers the skin to produce vitamin D, whether those rays come from the sun or a lamp. However, not all […]
- Humans
Letters from the October 2, 2004, issue of Science News
On a diet While heart disease victim Jody Gorran’s lawsuit against the Atkins empire will be decided in court (“Counting Carbs,” SN: 7/17/04, p. 40: Counting Carbs), the deadlier battle is being waged in the research laboratory. Several studies confirm that low-carbohydrate diets cause marked cholesterol elevations for many individuals. In contrast, a vegetarian diet […]
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19466
I would have thought that it is more likely that Earth’s hum creates the weather patterns than the other way around. Judy AngelGlasgow, Scotland
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19465
As a decaf drinker, I found myself shouting, “What about caffeine”?” as I read your article. How can any report not, at least, mention its involvement or lack thereof? Greg TulloRaleigh, N.C. Researcher Pertti Happonen suspects that caffeine was responsible for the effects seen in his study, but since Finns don’t drink much decaf, he […]
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19464
I was pleased to read that one of the most mathematically pretty sphere-stacking arrangements (the lovely 24-cell) occurs in four dimensions. The nice thing about four dimensions is that, by letting time be one dimension and using a good three-dimensional computer-graphics package, the arrangement can be viewed on a computer. Dan RyanPhiladelphia, Pa.
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19463
Surely, you mean ale. Beer, in this country at least, is a hopped drink. Evidence of ale brewing is what Robin Birley found at Vindolanda. Beer didn’t appear in England until the late Middle Ages. Ron WilcoxBath, England
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19462
Considering the controversy that Thomas Gold engendered when he first postulated abiogenic origins of earthly hydrocarbons, it’s odd you didn’t mention his name in your article. Edgar T. LynkNiskayuna, N.Y. Although Gold, author of The Deep Hot Biosphere (1998, Copernicus), was a strong proponent of a nonbiological origin of hydrocarbons, he was not the first […]
- Humans
Letters from the September 25, 2004, issue of Science News
More of less is more The counterintuitive finding that atrazine is more likely to kill tadpoles when it is highly diluted (“Just a Tad Is Too Much: Less is worse for tadpoles exposed to chemicals,” SN: 7/10/04, p. 20: Just a Tad Is Too Much: Less is worse for tadpoles exposed to chemicals) reminds me […]
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19461
Far from being a pathology, the eye cast noted in this article is exactly what one would expect for a right-eye-dominant artist. A dominant eye would see itself directly in a mirror but would observe the other eye looking at an angle away from the median. Before concluding that Rembrandt had an anomalous visual condition, […]
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19460
Astronomers and physicists seem to speak of black holes as though they took matter completely out of the universe. An evaporating black hole would not fizz away into nothingness. It would lose energy and reappear in normal space as a very dense object (complete with information). Someone might consider this when discussing quasars. Nancy ParkerCaldwell, […]
