Uncategorized
- Physics
Voyager spacecraft still buffeted by sun
Even though the two Voyager probes launched in 1977 passed the outermost planets in our solar system more than a decade ago, their sensors show that they can't yet outrun the influence of solar flares.
- Earth
Famed undersea vent may be lost
When scientists last month tried to revisit an undersea hydrothermal vent first discovered nearly a quarter of a century ago, they found the site desolate, possibly paved by a fresh volcanic eruption.
- Earth
Mangled microfossils may mark impact sites
Scientists studying sediment cores drilled in eastern Virginia say they’ve possibly identified a new clue to the locations of ancient, hidden impact craters: Just look for broken or twisted microbial fossils.
- Humans
Small lab animals exempted from law
The new farm bill explicitly exempts rats, mice, and birds from coverage under the federal Animal Welfare Act.
- Health & Medicine
Chemical stops allergic reaction in tests
Researchers have developed a protein that short-circuits allergic reactions in mice and in tissue cultures of human cells.
- Animals
Bay leaves may make rat nests nicer
Wood rats may be fumigating their nests with bits of California bay leaves, sprigs that killed flea larvae in lab tests.
- Health & Medicine
Shuttling medicines via blood cells
Researchers have developed a way of encapsulating drugs in red blood cells, which can be used to deliver low doses of anti-inflammatory drugs to cystic fibrosis patients.
- Earth
Presto, Change-o!
Compared with the snail's-pace processes that normally shape Earth's surface, the impacts of extraterrestrial objects change our planet's geology in a flash.
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19074
As a resident of South Carolina, I was fascinated by this article, which refers to an investigation of an ancient crater buried beneath the Piedmont sediments of our state. However, there wouldn’t be deep sediments overlying basement rock in the Piedmont. There, “basement rock” is close to or at the surface. Julian R. HarrisonCharleston, S.C. […]
- Health & Medicine
Standing Up to Gravity
Studies in space can help physicians better understand a disorder in which patients get faint or dizzy while standing.
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From the June 11, 1932, issue
BUTTERFLIES, “WINGED JEWELS,” ARE GEMS AT START OF LIFE Butterflies have been called “winged jewels” so often that the conceit can hardly be considered poetic any longer. Yet the appropriateness of the old metaphor receives new confirmation when we look at the egg of a butterfly, which represents the humblest beginning of its career of […]
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Mendel’s Genetics
The Mendel Museum of Genetics in the Czech Republic offers a well-illustrated online exhibition devoted to Gregor Mendel’s life and work. Pages are devoted to such topics as the mathematics of inheritance and Mendel’s genetics garden. Genetics-inspired artworks are featured in the gallery of contemporary art. Go to: http://www.mendel-museum.org/eng/1online/
