Uncategorized
- Earth
Reused paper can be polluted
Toxic chemicals can end up in recycled paper, making release of these reused materials into the environment potentially harmful.
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From the May 20, 1933, issue
LARGEST X-RAY TUBE BEGINS TO BATTLE AGAINST CANCER The mightiest weapon yet to enter the war against cancer was put in operation at the Mercy Hospital Institute of Radiation Therapy of Chicago. It is a new, 800,000-volt X-ray tube that, operating on a current of 1/100 of an ampere, is estimated to emit radiation equal […]
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Amphibian Atlas
Looking for a Montana tailed frog outside Montana or wondering in which state you might find a desert slender salamander? The U.S. Geological Survey has a Web site that identifies the places where different types of amphibians dwell across the United States. Click on any one of the 280 or so species of amphibians currently […]
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Repeat After Me
New research suggests that the ability to infer the thoughts and feelings of others grows out of a capacity for imitation exhibited by human infants and perhaps by other animals, as well.
- Astronomy
Gorgeous Gas
Beyond their undeniable beauty, images of nearby, starlit clouds of gas and dust, known as HeII nebulae, may reveal properties of the very first stars in the universe.
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Troubling Treat: Guam mystery disease from bat entrée?
A famous unsolved medical puzzle of why a neurological disease spiked on Guam may hinge on the local tradition of serving boiled bat.
- Chemistry
Diamond in the rough
Researchers have found a collection of previously undiscovered diamondlike compounds in oil.
- Health & Medicine
Bone Builder: New drug could heal hard-to-mend fractures
A synthetic compound can heal broken bones that are so damaged they don't knit on their own, a study in rats and dogs shows.
- Materials Science
Melt-Resistant Metals: Carbon coating keeps atoms in order
Shrink-wrapped in carbon, nanoscale metal chunks melt at extraordinarily high temperatures, suggesting carbon coatings as a route to higher heat resistance for materials and devices.
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Gypsy Secret: Children of sea see clearly underwater
Children who regularly dive to collect food have better-than-normal underwater vision because their eyes adapt to the liquid environment.
- Tech
Columbia Disaster Working Hypothesis: Wing hit by debris
The independent board investigating the breakup of the space shuttle presented its first detailed account of what might have caused the Feb. 1 disaster.
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19322
Your article neglects the most difficult problem associated with sending a probe to the vicinity of Earth’s core: sending the information back. Even a few feet of earth will stop conventional radio waves. Extra-low-frequency transmissions would do the job, but a transmission could take years. Augusto Soux San Diego, Calif. David J. Stevenson of the […]
