Uncategorized
- Physics
Not flipping out
A single atom on a surface has favored magnetic orientations that could allow it to encode a data bit.
- Earth
Clearly Concerning
The toxicity of a chemical that leaches from a widely used plastic receives conflicting evaluations in two new reviews.
- Math
Beating the Bush for Patterns
Across some arid landscapes, sparse vegetation grows in fractal patterns that hold clues to its resilience.
- Humans
Letters from the September 29, 2007, issue of Science News
Questioning the surge “The Power of Induction” (SN: 7/21/07, p. 40) was written as if this was a newly discovered technology. I have been using an electric shaver with induction recharging for years. Mike YorkPhoenix, Ariz. The ability to project electrical power some distance suggests a possible method to detonate or disable improvised explosive devices. […]
- Physics
Electron Superhighway
The remarkable strength and electrical properties of graphene, a chicken-wire network of carbon atoms, make it a promising new material for computer chips.
- Humans
From the September 18, 1937, issue
Wiping out insects not a good idea, a novel compound for preventing deadly blood clots, and firecrackers making fireflies flash faster.
- Earth
Toxipedia
Ever wonder whether some chemical in a bathroom cleanser, herbicidal spray, or paint is toxic? Just how poisonous is that chemical described in last week’s Science News? Toxicologists are developing one-stop shopping for such information at Toxipedia. Like Wikipedia, it allows the public—experts, advocates, or policymakers—to post information. Unlike Wikipedia, there is a rating system […]
- Health & Medicine
The Breast Solution
Reversing earlier advice, health authorities now say that babies of HIV-positive mothers in poor countries have a better chance of avoiding infection if they feed only on breast milk that's not supplemented with other food.
- Tech
Nanotube Press: Printing technique makes nanotransistors
A new technique for printing networks of carbon nanotubes on a wide range of surfaces is a step toward mass production of nanotubes devices.
- Paleontology
Bumpy Bones: Fossil hints that dinosaur had feathery forearms
A series of knobs on the forearm bone of a 1.5-meter-long velociraptor provides the first direct evidence of substantial feathers on a dinosaur of that size.
- Planetary Science
Muddying the Water? Orbiter drains confidence from fluid story of Mars
New images of Mars diminish the evidence that liquid water has flowed on some parts of the planet, but bolster the case in other places.
- Chemistry
Nanotherapy: Gold-drug combo could target tumors
Clusters of paclitaxel molecules attached to gold nanoparticles could deliver a safer and more effective chemotherapy punch to tumors.
