Uncategorized
- Astronomy
Spewing superdust
Astronomers have identified a type of supernova as the main source of space dust.
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19691
Tiktaalik may not have left the water by choice, to avoid predators, or to get more oxygen. Instead, it might have found itself left behind on a muddy floodplain each time waters receded with the tide. Tiktaalik ‘s “limbs” were probably first developed to survive in an environment that required bracing and stabilizing against currents, […]
- Paleontology
Amphibious Ancestors
Newly discovered fossils from Greenland, as well as a reexamination of those of previously known creatures, are providing researchers with additional insights into ancient vertebrates' move from water to land.
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Growing Up Online
New studies probe some of the many ways, both good and bad, that children and teenagers use the Internet and adapt to online communication.
- Math
Dropping Lowest Scores
Determining which scores to drop when computing a final grade that is to a student's greatest advantage can be tricky. For more math, visit the MathTrek blog.
- Humans
From the June 6, 1936, issue
Young robins ready to solo, threats from space, and molecule models.
- Health & Medicine
Medicine in the News
This Web site from the University of Pennsylvania School of Medicine serves as a clearinghouse for timely medical information. It provides news stories, along with “teaching brief” articles that aim to help clinicians and consumers understand the implications of new discoveries and developments in the medical world. Go to: http://www.medpagetoday.com/
- Earth
Toxic Tides: Another reason to worry about hurricanes
The hurricanes that struck Florida in the summer of 2004 also may have triggered an intense, widespread, and long-lasting red tide that afflicted the state's west-central coast throughout 2005.
- Animals
Leggiest Animal: Champ millipede located after 79-year gap
A millipede species that can grow up to 750 legs has turned up in California after decades with no sightings.
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19688
Reading the June 10 issue, I was prepared to catch the Simpsonesque spoof (blunder?) in this article. Perhaps the creature had up to 748 legs, or possibly up to 752 legs, but not “up to 750 legs.” David ClarkLititz, Pa. Researcher Paul Marek of East Carolina University explains that Illacme plenipes has four legs per […]
- Health & Medicine
Ancient Wisdom: Chinese extract may yield diabetes treatment
A plant extract used in traditional Chinese medicine could form the basis for new treatments for type 2 diabetes.
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All the Rage: Survey extends reach of explosive-anger disorder
A mental disorder that encompasses a wide range of recurring, hostile outbursts, including domestic violence and road rage, characterizes considerably more people than previous data had indicated.
