All Stories by Science News
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19030
Although we seldom have the deep and persistent snowfields needed to support watermelon snow in the spring, I did note it a couple of springs ago in persistent snowdrifts in and near tree shelterbelts in the high plains of northwest Kansas. One must be cautious of red snow in this area, however, because we occasionally […]
- Humans
From the May 17, 1930, issue
POLISH RHINOCEROS One of the most interesting of recent finds in paleontology has been the complete carcass of a Pleistocene rhinoceros, unearthed in an abandoned mine in the Starunia region in Poland. Skin, hair muscles, and all other tissues were well preserved, owing to the sealing up of the monster in a kind of oily […]
- Plants
X-rayed Flowers
For new insights into the delicate architecture of flowers, take an X-ray view. Albert G. Richards, who taught dental radiography at the University of Michigan, presents a gallery of unfamiliar views of familiar flowers, from the hidden archways of an iris to the complex plumbing of columbine spurs. Go to: http://www-personal.umich.edu/~agrxray/gallery.html
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19196
The article claims that Lake Agassiz became the world’s largest lake. It seems to me that the same conditions should have occurred in Asia. Shouldn’t you compare Lake Agassiz to glacier-dam-produced lakes in Asia and contemporary freshwater versions of the Black Sea and the Caspian Sea? Robert W. DavisMillburn, N.J. According to Martin Jakobsson of […]
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19195
This article says that women taking some kinds of over-the-counter painkillers are more likely than others to have high blood pressure. The conclusion that the painkiller “boosts their chance of developing high blood pressure,” however, is unfounded. It’s also plausible that whatever causes the women to take the pain medication raises blood pressure. Geoffrey A. […]
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19149
It was with great interest that I read this article. I realize that such articles aren’t comprehensive reviews of the literature, but I must point out that we have recently published in Virus Genes direct experimental evidence that supports the involvement of endogenous retrovirus in embryo implantation. Luis P. Villarreal University of California Irvine, Calif.
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19189
I feel the need to comment on the misconception that trisomies of other than chromosome 21 don’t survive birth. I have a friend whose daughter is a trisomy 18 and just celebrated her 19th birthday and other friends whose children with trisomies are nearing their teenage years. My own son, a trisomy 13, lived for […]
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19148
Newton derived theories about gravity by studying stationary or very slowly moving objects. Laboratory measures of G performed since share this fundamental approach. While this may accurately measure G, any possible relative velocity dependence to this constant or to the force of gravity goes undetected. Determining that force involves only the masses, the separation, and […]
- Humans
From the October 29, 1932, issue
THE OWL AND THE PUSSYCAT RIVALS AT MOUSE-CATCHING One of the favorite riddles of childhood was, “Spell ‘mousetrap’ in three letters”; and the answer was “C-A-T.” With even more appropriateness, the answer might have been “O-W-L,” for the Owl is an even better mousetrap than the Pussycat, besides being somewhat more restrained in the matter […]
- Earth
Timely Climate
Science educators at the University of Colorado and the National Geophysical Data Center in Boulder have designed an online tool that lets users study climate change and variability on different time scales–from daily fluctuations to cyclic changes with periods that span 100,000 years. Focusing on climatic processes and specific climate events, each time-scale category has […]
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19188
Your article perpetuates a common error regarding pond aquaculture when it states, “These systems all rely on large volumes of clean water flowing to the fish and carrying waste away.” In the catfish industry (the largest pond-culture venture in the United States), ponds are only emptied for renovation once every 10 to 20 years, and […]
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19187
After reading this article, I may have an answer for why a routine chest X ray indicated prominent scar tissue on my lungs even though I have never been a smoker during my 61 years. For the past 15 years, since a heart attack, I have jogged or ridden a bicycle for approximately an hour […]
