Science News

Science newspaper is a magazine specializing in Science topics.

Articles from Vol. 144, No. 3, July 17

A Child's Theory of Mind: Mental Life May Change Radically around Age 4
If you think kids say the darnedest things, get a load of what they think. Consider a group of pre-schoolers shown a box that they all agree appears to contain candy. Each child gets a chance to fling open the receptacle, but only a stash of...
AI at Work: From Prisons to Autos to Space
The Tennessee Department of Correction had a tough problem. Faced with a prison population of 50,000 and a welter of more than 2,000 rules specifying lengths of sentences, criteria for probation, and numerous other details of incarceration, department...
Ancient Ice Reveals Wild Climate Shifts
If you don't like Earth's current climate, just wait a spell. Studies of prehistoric ice drilled from deep beneath Greenland hint that the planet's thermostat has a habit of shifting back and forth with ease, making the climate much less stable than...
A Positive Step for Silicon Chemistry
Scientists have made a novel form of silicon with potentially new properties to tap. A team of chemists at Northwestern University in Evanston, Ill. and Indiana University in Bloomington has created and identified the first stable silicon cation, a...
Devilish Ice-Age Record
With a name like Devils Hole, it's no wonder this flooded fissure in Nevada keeps stoking the flames of discord. Some five years ago, researchers used the climate clues locked within Devils Hole to launch a debate over the cause of the ice ages. Now,...
Does Strep Trigger Movement Disorders?
Streptococcal bacteria can lead to a host of health problems that may erupt months or even years after an initial infection has subsided. A new study suggests that these bugs may also be responsible for certain movement disorders that afflict children....
Fish Oil Sharpens Young Preemies' Focus
Babies born quite prematurely enter the world almost fat free. And that poses a double liability: They lack not only a valuable reserve of stored energy, but also the high levels of one fatty acid essential for normal visual development. Researchers...
Genetic Clue to Male Homosexuality Emerges
Researchers say they have taken a major stride toward identifying a gene that may importantly influence the development of some cases of male homosexuality. The new evidence, published in the July 16 SCIENCE, suggests that a gene lying within a small...
How Fish Swim: Study Solves Muscle Mystery
Bolting like startled gazelles to avoid predators or trekking across oceans on seasonal migrations, fish use different kinds of muscles for different kinds of locomotion. Now, researchers have shown for the first time how fish use one of those muscle...
Party Numbers: Deploying a Host of Computers to Sort out a Mathematical Puzzle
You're one of six people at a dinner party You look across the table at your five companions. It should come as no surprise to you that the dinner party includes either a group of at least three people who all know one another or a group of at least...
Scientists Upset Insect Orthodoxies
A new study on insect evolution has set scientists buzzing. Its findings challenge the conventional wisdom that insect diversity exploded about 125 million years ago in response to the rapid spread of flowering plants. "This is going to be a hotly...
Soldering without Lead
Solders composed of lead and tin have long served as the "glues" that tie together electronic components. In recent years, however, concerns about the toxicity of lead have prompted searches for alternative solders that perform just as well or better....