Uncategorized
- Earth
Resetting a clock from Earth’s rocks
Better measurements of one of the rates of radioactive decay used to date extremely old rocks open up the possibility that Earth may have had a crust as many as 200 million years earlier than previously thought.
- Computing
Web worms: Code Red to Warhol
Using an efficient infection strategy, a malicious programmer could deploy a rogue computer program far more voracious than the Code Red worm that struck on July 19.
- Ecosystems
Wanted: Reef Cleaners
Nearly 18 years after a near total die-off of algae-grazing urchins in the Caribbean, those herbivores are poised for a comeback—which could help save area corals.
- Physics
Accelerators load some new ammo: Crystals
To make denser accelerator beams that may open new doors in physics, researchers have chilled ions in a miniature test accelerator until the ions coalesced into crystals.
- Materials Science
Chemical sensors gain true portability
Researchers have designed simple new films for indicating the presence of worrisome airborne chemicals.
- Earth
Deep-sea gear takes wild ride on lava
When a set of instruments monitoring an underwater volcano got trapped in an eruption in early 1998, the scientists who had deployed the sensors ended up with more data than they bargained for.
- Animals
Smart tags show unexpected tuna trips
The first report on Atlantic bluefin tuna wearing electronic tags reveals much more dashing across the ocean than expected.
- Astronomy
Astronomers spy familiar planetary system
Studying a star in the Big Dipper, astronomers have for the first time found a planetary system that reminds them of home.
- Health & Medicine
Drugs Counter Mad Cow Agent in Cells
Fueled only by promising studies of cells, a California research team has invited controversy by beginning to give a little-used malaria drug to patients who have the human version of mad cow disease.
- Health & Medicine
Vaccine Verity
Widely publicized concerns about vaccination leading to autism, multiple sclerosis, and diabetes have not been borne out by research.
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“Vaccine verity” describes several parents who refuse to get their children vaccinated, citing rumors. These people are gambling in a casino they don’t understand. Since the risk of their child developing a serious disease is still low, they will no doubt say, “See, vaccination isn’t necessary.” But parents who bet against vaccines and lost might […]
- Paleontology
A Ticklish Debate
Paleontologists engaged in a contentious debate about the origins of feathers often reach interpretations that are poles apart, and they defend their views with fervor.
