Uncategorized
- Math
Changes of Mathematical State
Untangling a web of conflicting demands can be tough on computers.
- Humans
From the May 3, 1930, issue
MOON’S SHADOW AT ECLIPSE PHOTOGRAPHED Clouds over the sun broke away at Camptonville, Yuba County, California, two minutes before the total phase of the solar eclipse of the sun. Only the lightest haze remained, and the observations planned by the various expeditions located there were carried through successfully. The Lick Observatory-Crocker expedition under the direction […]
- Astronomy
A Hubble Decade
To celebrate the Hubble Space Telescope’s 10th anniversary, the Space Telescope Science Institute in Baltimore, Md., has created a new Web site devoted to the Earth-orbiting telescope and its spectacular images. Offering much more than pretty pictures, the site recounts Hubble’s discoveries, illustrates how the telescope works, and suggests various educational activities and games. Until […]
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Spying on Plant Defenses: Insects monitor toxin ramp-up
A common caterpillar can sense when a plant is gearing up to manufacture insecticidal toxins and respond by starting up its own detoxification system.
- Earth
Snowball Melting? Ancient formation shows glacier activity
An ancient, well-preserved glacial formation in Oman provided evidence that Earth experienced intermittent ice ages like those in Earth's more recent history.
- Humans
Nobel Chemistry: Laureates’ techniques enable researchers to probe large biomolecules
The 2002 Nobel Prize in Chemistry recognized the work of three scientists who created tools for analyzing proteins and other large biological molecules.
- Earth
Contraceptive-Patch Worry: Disposal concern focuses on wildlife
Some scientists now worry that discarded contraceptive patches may leak synthetic estrogen into the environment, potentially harming wildlife.
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19029
Your readers need not wait to do less crying in the kitchen. All you have to do is put the onions in the refrigerator for a half hour or in the freezer for 10 minutes. Daniel F. BarightLebanon, Mo. Another solution is to do the chopping outside. I have found that more turbulent, outside air […]
- Health & Medicine
Less Crying in the Kitchen: Tasty, tearfree onions on the horizon
The discovery of a new enzyme responsible for creating the tear-inducing chemicals found in onions may herald the arrival of genetically modified tearfree onions.
- Astronomy
Celestial Divide: Finding two families of galaxies
By analyzing data from a mammoth sky survey, astromoners have found that galaxies divide into two distinct families, depending on their stellar mass.
- Humans
From the October 15, 1932, issue
THE SABER-TOOTH STRIKES The artist has made a sketch of a dramatic scene involving a horselike hornless rhinoceros. It shows the poor animal attacked by a long-tailed saber-toothed tiger. The great cat is pictured as attacking much as a modern tiger or lion sometimes attacks: gripping a hard hold with its forelegs, slashing at its […]
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Frog Guts
A little squeamish about dissecting a frog? Try the online virtual frog dissection at the Froguts Web site. The site also includes multiple-choice tests, lesson plans, and links to other frog pages on the Web. Requires the Flash 6 browser plug-in. Go to: http://www.froguts.com/
