Uncategorized
- Health & Medicine
AIDS Abated: Genome scans illuminate immune control of HIV
Three genetic variations picked out by powerful whole-genome scans help explain why some people develop AIDS quickly while others keep it at bay.
- Health & Medicine
fryPod: Lightning strikes iPod users
A jogger wearing an iPod music player suffered second-degree ear and neck burns, burst eardrums, and jaw fractures after lightning struck a nearby tree.
- Materials Science
Crystal matchmaker
Nonperiodic structures called quasicrystals can act as interfaces between different crystal structures that would ordinarily not stick to each other.
- Tech
Double-decker solar cell
A two-layer, polymer-based solar cell has good efficiency and could be cheap to mass-produce.
- Planetary Science
Hyperion’s hydrocarbons
New observations by the Cassini spacecraft indicate the presence of ice and solid carbon dioxide on Saturn's moon Hyperion, and suggest an explanation for the orb's spongelike appearance.
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Alcohol problems hit nearly 1 in 3 adults
Nearly one in three recently surveyed U.S. adults reports having had serious alcohol problems at some time in their lives.
- Health & Medicine
Brain stem cells help Parkinson’s monkeys
Transplants of human-brain stem cells triggered signs of improvement in monkeys with a Parkinson's disease–like disorder.
- Math
Math as a Civil Right
A longtime activist in the civil rights movement now teaches that mathematical literacy is the key to full participation in the country's economy.
- Humans
Letters from the July 21, 2007, issue of Science News
Quantum leak? Perhaps there need not be “degrees of quantumness” (“Degrees of Quantumness: Shades of gray in particle-wave duality,” SN: 5/12/07, p. 292). As the beams pass increasingly closer to the surface, the plate will induce a small (but increasingly larger) spread of energies (hence wavelengths) in the electrons within the beam, possibly explaining the […]
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19858
This article 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. Josef HeitWebster, N.Y. Several readers pointed out that wireless […]
- Physics
The Power of Induction
A new technology based on classical electromagnetic theory uses oscillating magnetic fields to transfer electric power wirelessly across a room.
- Math
Mathematical Lives of Plants
Mathematical models that capture the essence of biological growth mechanisms are beginning to reveal how plants develop structures with intriguingly elegant geometries.
