Uncategorized
- Animals
Social Cats
Who says cats aren't social? And other musings from scientists who study cats in groups.
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One cannot be around cats long without observing that they have intelligence and personalities nearly as complex and diverse as people do. They communicate with each other and people, both verbally and with body language. They have preferences for whom they associate with, both human and feline, and those can change. I think that complexity […]
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From the September 12, 1931 issue
ELEPHANTS JAWBONE SHOWS LIKENESS TO SCOOP SHOVEL Where the idea of the present-day scoop shovel came from is suggested in the illustration on the cover of this weeks Science News Letter. When President Henry Fairfield Osborn of the American Museum of Natural History received the weird lower jawbone of an ancient Asian elephant, he was […]
- Physics
Caught in a Flash
View the tip of a snapped towel (which moves faster than the speed of sound), then take a look at a bursting water balloon, a collapsing water drop, a tennis ball in mid-collision with a racket, and many other amazing images in this gallery of high-speed photos snapped by high school students. Sorry! This Web […]
- Math
Waves of Congestion
You’re confined to a single lane as you drive along a narrow, winding road. The car in front of you suddenly slows, then just as inexplicably accelerates a short time later, only to slow again. As you keep adjusting to the leading car’s erratic speed changes, you sometimes find a clump of vehicles closely tailing […]
- Math
Waves of Congestion
You’re confined to a single lane as you drive along a narrow, winding road. The car in front of you suddenly slows, then just as inexplicably accelerates a short time later, only to slow again. As you keep adjusting to the leading car’s erratic speed changes, you sometimes find a clump of vehicles closely tailing […]
- Chemistry
Novel material fights against cavities
A new material that dentists might eventually put under fillings and braces secretes calcium and phosphate ions to rebuild teeth as cavities form.
- Chemistry
Argon keeps chips and lettuce crisp
A new technique replaces the air in food packages with argon instead of widely used nitrogen, improving taste and shelf life.
- Chemistry
Tiny spheres may deliver oral insulin
Researchers have developed microscopic spheres that can sneak insulin past the stomach so it can be absorbed in the small intestine.
- Health & Medicine
Study challenges surgery for lung disease
Patients with the most severe emphysema shouldn't undergo major surgery that removes part of their damaged lungs.
- Health & Medicine
Walking and eating for better health
A low-fat diet and regular exercise can ward off diabetes in people at high risk of developing the disease.
- Chemistry
Faster, Better, Cleaner?
Chemists have found that a new class of compounds, called ionic liquids, can substitute for widely used, messy organic solvents while also performing better and producing new products of interest to industry.
