Uncategorized
- Chemistry
Leaden news for city neighborhoods
Researchers have identified more than 400 urban sites that may be highly contaminated with lead but had remained unknown to authorities for decades.
- Chemistry
Would you like wheat with that burger?
Researchers have used wheat to make a biodegradable hamburger carton.
-
Gene therapy won’t replace Viagra—yet
Scientists are making progress toward inserting genes to cure impotence temporarily.
-
Looking for osteoporosis in spit
A dentist has found three compounds in saliva that could be used to gauge bone loss.
-
18925
“Oceans of electricity” was a fine article, but one line should have been added about the engineers of the ’30s who had plans to build wave-power electricity for the eastern United States. World War II interrupted the plans for cheap power without oil, however. Douglas O. Deshazer Omaha, Neb. The article mentions the lack of […]
- Tech
Oceans of Electricity
The world's first commercial wave-power plant began pumping current into a Scottish island's electric grid last winter, just ahead of a host of competing schemes for converting ocean-wave motion into electricity.
- Health & Medicine
Fatty Findings
A recently discovered protein may explain at least part of the molecular mechanisms behind links among obesity, diabetes, heart disease, and even some cancers.
-
Caving in Comfort
Explore the wonders of solution caves, lava tubes, sea caves, and other underground realms at this beautifully illustrated Web site, developed by caver and photographer Dave Bunnell. The site features photographs of caves throughout the world and maps of idealized “virtual” caves, which explain and illustrate examples of nature’s handiwork. Go to: http://www.goodearthgraphics.com/virtcave.html
-
From the April 11, 1931, issue
THE PRECIOUS JEWELS IN HIS HEAD ARE TWAIN Did you ever stop to take a really good look at a toads eyes? Just as many a plain-faced person is redeemed from ugliness by having fine eyes, so also does the toad find salvation from his ungraceful form, his abysmal mouth, his warty skin. His eyes […]
- Astronomy
Searching for a lost craft
A recent Department of Defense analysis of images of the Red Planet may have located a lost spacecraft on Mars, but NASA says the images could just be electronic noise.
- Astronomy
Probes find a new plume on Io
Two spacecraft jointly eyeing Jupiter's moon Io, the most volcanically active body in the solar system, have spotted a towering new plume.
- Math
Strange Orbits
Like toy cars chasing each other on a looped racetrack, three stars can, in principle, trace out a figure-eight orbit in space. This newly discovered, mathematically surprising pattern of motion arises from the force of gravity acting on three bodies of equal mass. Their movements are timed so that each body in turn passes between […]
