Uncategorized
- 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.
- 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.
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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 […]
- 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/
- Paleontology
Dear Mummy: Rare fossil reveals common dinosaur’s soft tissue
A mummified dinosaur unearthed in Montana a year ago is giving scientists a rare peek at what the creature's muscles and other soft tissues may have looked like.
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The picture of the mummified dinosaur was amazing and a bit spooky. It is a great find. Patrick LeaheyGeneva, N.Y.
- Health & Medicine
Final Word? Breast surgeries yield same survival rate
Women with breast cancer who undergo partial-breast removal are just as likely to survive for at least 20 years as are women who have their entire breast removed.
- Math
A Fibonacci Fountain
The year 1202 saw the publication of one of the most famous and influential books in mathematics. Widely copied and imitated, Liber abaci introduced the use of Arabic numerals and the Hindu-Arabic place-valued decimal system into Europe. It was written by Leonardo Pisano, who became better known by his nickname Fibonacci. Helaman Ferguson’s Fibonacci Fountain. […]
- Math
A Fibonacci Fountain
The year 1202 saw the publication of one of the most famous and influential books in mathematics. Widely copied and imitated, Liber abaci introduced the use of Arabic numerals and the Hindu-Arabic place-valued decimal system into Europe. It was written by Leonardo Pisano, who became better known by his nickname Fibonacci. Helaman Ferguson’s Fibonacci Fountain. […]
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Long live the Y?
Researchers have identified a means by which the Y chromosome may forestall, or at least delay, the gradual degradation that some biologists argue will ultimately delete it from the human genome.
