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TechResistancefree wire takes long jump
A wire-making company has demonstrated a process that yields potentially inexpensive, high-current superconducting wires about 10 times longer than previous prototypes.
By Peter Weiss -
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Many people who are exploring the possible connection between childhood vaccines and autism claim that the culprit is not the vaccines themselves, but the mercury-containing preservative thimerosal. Does the Danish MMR vaccine contain it? Anne SealsSumner, Wash. Thimerosal has never been used in the MMR vaccine, either in the United States or in Denmark .–B. […]
By Science News -
Health & MedicineStudy exonerates childhood vaccine
A nationwide study in Denmark provides strong evidence that a childhood vaccine once blamed for some cases of autism plays no role in the development of that neurological disorder.
By Ben Harder -
AstronomyGalactic cannibalism strikes again
Astronomers have discovered the remains of a tiny galaxy that was swallowed by the galaxy Centaurus A only a few hundred million years ago.
By Ron Cowen -
EarthEl Niños came more often in Middle Ages
Analyses of layered sediments from a South American lake suggest that the worldwide warm spells known as El Niños occurred more frequently about 1,200 years ago, when Europe was entering the Middle Ages, than they do today.
By Sid Perkins -
PaleontologyForged fossil is a fish-eating fowl
Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.
By Sid Perkins -
AnimalsMad Deer Disease?
Chronic wasting disease, once just an obscure brain ailment of deer and elk in a small patch of the West, is turning up in new places and raising troubling questions about risks.
By Susan Milius -
EarthTaming Toxic Tides
A growing international cadre of scientists is exploring a simple strategy for controlling toxic algal blooms: flinging dirt to sweep the algae from the water.
By Janet Raloff -
Planetary ScienceMartian Radiation: Giving off a faint X-ray glow
Astronomers have for the first time taken an X-ray image of the Red Planet.
By Ron Cowen -
Health & MedicinePredisposed to Trouble: Gene variants implicated in stomach cancer
A person's risk of stomach cancer can depend on the genetics of both the individual and the bacterium Helicobacter pylori.
By Nathan Seppa -
EcosystemsWorm Attacks: Invading earthworms threaten rare U.S. fern
An unusual study of the effects of invading earthworms on North American plants finds that the exotics might be on the way to killing off a rare fern.
By Susan Milius -
Lost That Smoking Feeling: Emotions sputter as cigarette motivator
The first detailed effort to monitor the reactions of cigarette smokers as they carry out their daily activities finds that they feel neither better nor worse than at times when they don't begin smoking.
By Bruce Bower