Letters to the Editor

18992

In this article there is a graph showing sharp peaks of ghrelin at mealtimes and a rapid drop-off after the meal is eaten. There is also a peak during the night, but there is no meal responsible for the drop-off. Does the research indicate what happens to the ghrelin level during the day when a […]

19050

This article indicates that the researchers were surprised that the participants from “traditional societies” acted in some mode rather than pure self-interest. This isn’t surprising if you accept the notion that true self-interest is that which gives the most overall personal benefit both now and in the foreseeable future. All of the participants acted exactly […]

18984

You missed the papers that describe our experiments that produce ball lightning in our lab. We use a lightning-arc-producing apparatus. Clint SewardElectron Power SystemsActon, Mass. The ball-lightning article makes no mention of Nikola Tesla’s creation of ball lightning while generating megavolt discharges from gigantic Tesla coil arrays. Ted V. PowellBaldwin, N.Y.

18991

Maybe this article would be better titled “Don’t think and thrive.” As other reports tie stress to depressed immune function, any stress reduction (including intoxicant use) is expected to offer benefits in disease. Because ethanol use is already culturally ubiquitous, often with negative effects, outcome-oriented research serves the purpose of alcohol’s producers. Stephen DilibertoMiami, Okla.

19049

Shame on you. This article on the importance of fractals in earth sciences never mentioned the “father” of fractals, the Polish-French scientist Benoit Mandelbrot, nor Christopher Scholz, the solid-earth scientist of Columbia University who first recognized the importance of Mandelbrot’s mathematical genius. Eugene C. BoveeLawrence, Kan.

18990

The concluding comment in this article that both sexes preferred unsmeared birds doesn’t show any support for the researchers’ contention that non-UV-blocking smears didn’t impact the sexual behavior of birds. M.J. RaichykCincinnati, Ohio The researchers had noticed that birds preferred companions of the opposite sex with fluorescent feathers still glowing. But might this just be […]

18989

I have to tell you that your new look will keep your base audience and attract new readers. Your new design leaped off the kitchen counter and said, “Read me, read me!” It is still serious, as it should be, but so much more inviting. Becky MoserKings Mountain, N.C. I hate the new look. The […]

18988

I was disappointed to see Science News depart from its usual objective reporting to cite an antinuclear propagandist as sole authority on the “dangers” of nuclear waste. The Nuclear Information and Resource Service (NIRS) is a single-issue political action group. Such organizations have a right to exist, but they should be identified as such in […]

18987

The discovery that silicon would explode is not news to me. I made a serendipitous discovery over 20 years ago as a computer hobbyist. I discovered that silicon would explode when I accidentally injected 15,000 volts into some integrated circuits designed for 5 volts. Fortunately, the detonations were small and no damage was done to […]

18986

If the stones in this article simply were used for grinding ocher to make powder, would not the grinder rough up the surface to make it a better grindstone? The marks may be nothing more than primitive knurls. Rather than art, this looks like a tool to me, not different in principle from flaked flint. […]

19048

I seem to be missing something when I read articles that refer to the immense pressures at Earth’s core. If the source of gravity is mass and there’s equal mass in all directions at the core, then the core should be suspended in zero gravity. It’s very frustrating for me to get this wrong. Glenn […]

18985

Reading this article, I wondered about other species. I have a golden retriever that licks her legs to the point of making them raw. I had thought it was a nervous habit learned as a puppy, then a previous golden retriever owner told me that it is a trait of the breed. I am now […]