Uncategorized
- Health & Medicine
Cancer with a Twist: Protein instrumental in breast-cancer metastasis
A protein called Twist, which orchestrates gene activity in cells, facilitates the spread of some breast cancers.
- Anthropology
Stone Age Ear for Speech: Ancient finds sound off on roots of language
Ancestors of Neandertals that lived at least 350,000 years ago heard the same range of sounds that people today do, suggesting that the ability to speak arose early in the Stone Age.
- Physics
Misbehavin’ Meson: Perplexing particle flouts the rules
The discovery of what appears to be a new subatomic particle with bizarre properties is challenging theorists' understanding of how matter behaves.
- Animals
Hot Bother: Ground squirrels taunt in infrared
California ground squirrels broadcast an infrared signal when confronting a rattlesnake.
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I don’t think anyone should be surprised that squirrels have figured out how to say “nyah, nyah” to rattlesnakes. After all, it’s what they’ve been saying to cats, dogs, and bird-feeder owning humans for years. R. Kelly WagnerAustin, Texas
- Humans
From the June 23, 1934, issue
Young desert hawks in their nest, properties of newly found element 93, and the effect of high pressure on phosphorus.
- Astronomy
Tracking Solar Activity
Part of the Student Observation Network, this NASA Web site offers information and activities related to solar flares and storms. Vividly illustrated online tutorials provide guidelines and background for observing sunspots, recording radio waves, collecting data from magnetometers, and viewing auroras. Learn how to make a sunspot viewer or magnetometer. See live images of the […]
- Humans
Letters from the June 26, 2004, issue of Science News
Theory and practice Like physicists, mathematicians have always been divided into theorists and experimentalists (“Math Lab: Computer experiments are transforming mathematics,” SN: 4/24/04, p. 266: Math Lab). And, as with the physicists, the two groups of mathematicians have not gotten along very well. Still, in physics, there has always been an understanding that both groups […]
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Sleepy brains take learning seriously
After people practice a hand-eye coordination task, electrical activity in specific areas of the brain during sleep reflects neural processes involved in learning to perform that task better.
- Physics
New pass at neutrino mass
The first experiment to create neutrinos in an accelerator and then beam them a long distance has found a long-awaited, new form of evidence that those fundamental particles weigh something.
- Earth
Cost of protecting the oceans
Operating an extensive global network of marine parks in which fishing and habitat-stressing activities are restricted would probably be more affordable for governments than continuing to subsidize struggling fisheries at current levels.
- Physics
Why the thinnest sticky hairs rule
The foot hairs of geckos and other creatures that can walk on ceilings may be microscopic because only such slender hairs offer optimal adhesion, regardless of shape.
