Uncategorized
- Planetary Science
Flashy news from Mars
A streak across the Martian sky observed by the rover Spirit was most likely a meteor associated with a comet called Wiseman-Skiff.
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Monkeys keep track of small numbers
Monkeys show signs of knowing when the number of faces that they see matches the number of voices that they hear, leading a research team to conclude that these primates possess basic counting skills.
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Placebo gives brain emotional break
Placebo-instigated anxiety reduction is accompanied by sparse activity in emotional parts of the brain as well as by intense responses in neural structures that dampen pain, a new brain-scan study finds.
- Tech
Sensor measures mass of one DNA molecule
A new biosensor that can detect the mass of a single DNA molecule could lead to faster and more accurate screening for HIV infection, cancer, and other diseases.
- Earth
Antarctica’s gaining ice in some spots
Large portions of Antarctica are storing more snowfall than they once did.
- Astronomy
Panning Distant Dust
Astronomers are using hundreds of newly detected debris disks found around a variety of nearby stars to hunt for planets and learn about the evolution of our solar system.
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Sound Off
By using bits of RNA to eliminate the effects of selected genes, scientists are developing new ways to study gene function and treat diseases.
- Humans
Letters from the July 2, 2005, issue of Science News
Chlorine’s fate? “Special Treatment: Tiny technology tackles mega messes” (SN: 4/23/05, p. 266), on the reaction of nanoparticles of iron with trichloroethane (TCE) contaminating an aquifer, states that the TCE is converted “into ethane.” What happens to the chlorine stripped off the TCE? Is it converted into insoluble inorganic compounds or is it available to […]
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- Humans
From the June 22, 1935, issue
Beauty in a police radio transmitter, a new aid in controlling diabetes, and mathematical help for cake bakers.
- Animals
Save the Tapir
Tapirs are relatives of horses and rhinos. Sometimes known as “living fossils,” these unusual animals inhabit jungle and forest lands in Central and South America and Southeast Asia. The Tapir Gallery provides information about tapirs, including images and an extensive bibliography. A student section of the Web site, produced by the Tapir Preservation Fund, provides […]
- Materials Science
Lube Tune-Up: Motor oil from recycled plastic could improve automotive-fuel efficiency
Chemists have developed a technique for making high-performance lubricating oils from recycled plastic.
