Uncategorized
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From the April 23, 1932, issue
WELDING OFFERS CAMERA STRIKING FIELD OF BEAUTY By no means a trivial by-product of electric welding is the field of beauty the new art is opening up for photographers. While electricity eliminates the irritating staccato of noisy riveting, the photographer focuses his camera on a glowing scene of shadow and light, man and steel. Such […]
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Ant Patrol
With more than 11,000 ant species now identified worldwide, the “Antbase” Web site serves as the definitive guide to these social insects. Hosted by the American Museum of Natural History, the site provides links to a variety of resources devoted to ants, including databases, image collections, and news articles. Go to: http://research.amnh.org/entomology/social_insects/
- Astronomy
Strange Stars? Odd features hint at novel matter
Two stellar corpses thought to be made of neutrons may actually contain weird forms of matter never observed before.
- Animals
Big-Eyed Birds Sing Early Songs: Dawn chorus explained
Researchers report a strong relationship between eye size and the light intensity at which birds start to sing in the morning.
- Materials Science
Membrane Mastery: Nanosize silica speeds up sieve
A novel modification to polymer membranes gives researchers a means to tune certain filters so they separate molecules more quickly and more selectively.
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European Union for Ants: Supercolony reigns from Italy to Portugal
European researchers have documented the largest ant supercolony yet, a network of cooperating nests that stretches from Italy to the Atlantic.
- Health & Medicine
Cardiac Culprit: Autopsies implicate C-reactive protein in fatal heart attacks
Of people who died suddenly, those who succumbed to a heart attack had an abundance of the inflammation indicator C-reactive protein in the blood, even though few had had outward signs of heart problems.
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19058
I am surprised at the matter-of-fact sounding statements in this article: “Dark matter reacts only to gravity. Unlike visible matter, it can’t be pushed by winds.” We hypothesize the existence of dark matter to explain observations that could be attributed to gravitational forces, but we don’t know what dark matter might be. How can one […]
- Astronomy
Cosmic Remodeling: Superwinds star in early universe
New measurements reveal that some of the earliest galaxies in the universe produced winds so powerful and persistent that they blew material from one galaxy to another, temporarily separating dark matter from visible matter and profoundly influencing the evolution of future generations of galaxies.
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19057
In this article, what, other than hubris, allows the modelers to conclude that the assumptions upon which their calculations are based are more valid than those upon which the genetic and paleontological calculations are based? Letting a computer do the number manipulations doesn’t change “garbage in, garbage out.” Leonard StoloffDelray Beach, Fla.
- Paleontology
Older Ancestors: Primate origins age in new analysis
A controversial new statistical model concludes that the common ancestor of primates lived 81.5 million years ago, about 16 million years earlier than many paleontologists have estimated.
- Earth
Feminized Frogs: Herbicide disrupts sexual growth
At concentrations currently found in water, the widely used weed killer atrazine hormonally strips male frogs of their masculinity and may be partly responsible for global amphibian declines.
