Uncategorized
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19003
This article says, “While tornadoes are most common on the Great Plains and throughout the Mississippi River valley, they can occur almost anywhere in the United States.” Are tornadoes unique or more common in North America than elsewhere? Ruth HousmanNewton Center, Mass. Tornadoes have been spotted on every continent except Antarctica, says Harold Brooks of […]
- Earth
Tornado Alley, USA
A new model that simulates 30,000 years worth of tornadoes in the United States finds that the place not to be if you fear funnel clouds is southeastern Oklahoma, where any particular spot can expect to get damaged once every 4,000 years.
- Math
Filling In Blanks
Researchers are developing automated methods based on differential equations to reduce the time and effort required to fix digital images, not only to fill in blank areas but also to remove extraneous objects.
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From the May 7, 1932, issue
MONKEYS GET BALD LIKE MEN It is no longer fair to blame your barber or beautician for that bald spot; nor can you lay your gray hairs onto worry over your childrens naughtiness or your brokers shortsightedness. Getting bald or going gray are just primate traits, like walking on two legs instead of four, according […]
- Tech
Cold Lighting
Solid-state light sources, such as light-emitting diodes, promise greater energy efficiency than do incandescent lamps. The Sandia National Laboratories has launched a Web site that offers articles, references, and other information on semiconductor-based lighting and its use for illuminating homes, offices, and public spaces. Go to: http://lighting.sandia.gov/
- Math
Prime Spirals
Precisely defined yet enticingly elusive, prime numbers occupy a central place in number theory. Evenly divisible only by themselves and 1, these special integers–2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, and so on–pose all sorts of conundrums. In a square grid, numbering squares instead of line intersections serves as […]
- Astronomy
Sharper Images: New Hubble camera goes the distance
Astronomers have unveiled a picture of the distant universe that ranks as the sharpest and most detailed ever recorded.
- Health & Medicine
Cancer Link Cooks Up Doubt: Heating may form potential carcinogen in food
Foods cooked at high temperatures contain large concentrations of acrylamide, a compound suspected to cause cancer in people, but researchers are cautious about acting on preliminary, unpublished data.
- Astronomy
Faded Stars Get New Role: Hubble takes a long look
By setting their sights on the galaxy's faintest stars, scientists have calculated the universe's age to be between 13 billion and 14 billion years old.
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19002
This article implies that the universe has a beginning and maybe an end. That seems to be a leap. I think we should not limit our thinking to a universe that was created at some point by a Big Bang or a Supreme Being. The facts in the article point to an event (maybe the […]
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19059
Ian Gotlib doesn’t disprove “clinical lore” that depressed individuals often cry. People who are depressed typically become preoccupied with their faults and shortcomings and less interested in the world, much less compassionate for others. That the study described finds that some people who are depressed do not cry in response to another’s sad situation doesn’t […]
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All Cried Out: Major depression puts lid on tears
A new study suggests that depressed individuals cry no more often in response to a sad situation than nondepressed people do.
