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Materials ScienceTaken for a Spin
Considering silk from the spider's perspective may offer the best chance of replicating these creatures' tough threads.
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HumansLetters from the April 14, 2007, issue of Science News
Heated comments I am disappointed in your article on the latest Intergovernmental Panel on Climate Change (IPCC) summary (“From Bad to Worse: Earth’s warming to accelerate,” SN: 2/10/07, p. 83). It was a political summary, not the 1,500 page report that’s due in May 2007. How often have you seen a scientific summary published 3 […]
By Science News -
MathCan’t Knock It Down
Mathematicians have found three-dimensional shapes that flip themselves upright from any position.
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EcosystemsThe Great Turtle Race
This international conservation event involves 11 leatherback turtles that are “racing” toward feeding areas south of the Galapagos Islands. Pick your favorite of these endangered animals and follow its progress, as tracked by satellite, from April 16 to April 29. Go to: http://greatturtlerace.com
By Science News -
19818
I find it interesting that even the scientists studying Mars can’t accept that our local star can have a major impact on climate. I am still waiting for the global-warming-crisis mongers to explain how carbon dioxide causes global warming. Donald R. Laster Jr.West Long Branch, N.J. So now we are asked to believe that the […]
By Science News -
Planetary ScienceNo Escape: There’s global warming on Mars too
The overall darkening of Mars' surface in recent decades has significantly raised the Red Planet's temperature, a possible cause for the substantial, recent shrinkage of the planet's southern ice cap.
By Sid Perkins -
Health & MedicineDrug-Resistant Flu Detected: Japanese strains appear transmissible
For the first time, researchers report drug resistance in type B influenza virus and say the drug-resistant strain may jump from person to person.
By Brian Vastag -
19817
The fact that more people are overdosing on niacin to cover up relatively benign marijuana use exemplifies what’s wrong with the failed “War on Drugs” approach. Chris MajDenver, Colo.
By Science News -
Health & MedicineNot-So-Artful Dodgers: Countering drug tests with niacin proves dangerous
Attempts to cleanse illicit drugs from one's body by taking large doses of niacin can cause life-threatening reactions.
By Nathan Seppa -
19816
I have to ask you to remove the subtitle “Dangerous Bridge” under the photograph of the exit ramp from the New Jamarat Bridge in Saudi Arabia. There has never been an accident on that ramp, and the bridge is now being overhauled to make it safer. Dirk HelbingDresden University of TechnologyDresden, Germany
By Science News -
PhysicsFormula for Panic: Crowd-motion findings may prevent stampedes
The physics of pedestrian flows could help prevent stampedes such as the one that killed hundreds during a pilgrimage to Mecca in 2006.