All Stories
-
19369
Your article gives American beef eaters a false sense of security. Yes, only 1 cow out of the 20,000 tested has been discovered to have bovine spongiform encephalopathy (BSE). However, over 35 million cows were slaughtered in the United States last year, meaning that only 0.06 percent of all cows slaughtered were tested for BSE. […]
- Humans
Cow Madness: Disease’s U.S. emergence highlights role of feed ban
The threat of mad cow disease to both people and animals in the U.S. remains low, as long as government regulations designed to prevent the disease's spread are enforced, risk analysts say.
- Astronomy
Taste of a Comet: Spacecraft samples and views Wild 2
Pummeled by debris, a NASA spacecraft last week snatched up dust samples while taking the sharpest images ever of a comet's icy core.
-
- Health & Medicine
Ephedra Finale
Last week, Health and Human Services Secretary Tommy G. Thompson announced that the Food and Drug Administration would soon outlaw U.S. sales of diet products containing stimulants derived from the Ephedra sinica plant. He timed the pronouncement to anticipate the start of the perennial diet season: New Year’s Day. Ephedra plant. Univ. of Calif., Davis […]
- Earth
When testosterone gets down and dirty
Testosterone excreted by livestock can pass through soils, which may explain new findings of fish-altering hormonal activity in water downstream of cattle feedlots.
- Astronomy
X-ray images highlight galaxy collisions
A new study provides graphic evidence that X-ray observations may be the best way to identify ancient collisions between galaxies.
- Health & Medicine
SARS vaccine triggers immunity in monkeys
An experimental vaccine against the SARS virus shows promise in a test on monkeys.
-
19365
I do not know about the rest of your readers, but I do “hear” at least some low frequency sounds, but not with my ears. The nerves in my feet feel these vibrations and my brain parses the sounds to my flight-or-fright processor before I can process any conscious perception. Ray BryanSt. Paul, Minn.
- Earth
Infrasonic Symphony
Scientists are eavesdropping on volcanoes, avalanches, earthquakes, and meteorites to discern these phenomena's infrasound signatures and see what new information infrasound might reveal.
-
19360
In the arts, we say that material, such as paper, that deteriorates readily because of its composition has “internal vice.” I suppose that could be said of newspapers on several grounds. Lawrence Wallin Santa Barbara, Calif.
- Materials Science
News That’s Fit to Print—and Preserve
Analyses of newsprint materials suggest that, despite their frail appearance, newspapers can last more than 200 years in storage—a fact that calls into question the merits of microfilming.
