News
- Chemistry
Minimotor: Single molecule does some work
A single molecule has performed mechanical work—pulling and releasing a cantilever tip—when exposed to light.
- Physics
Unexpected Boost: A superconductivity killer’s silver lining
Among superconductors—materials able to conduct electricity without resistance—an effect that normally diminishes current-carrying ability surprisingly turns out to sometimes enhance it.
- Animals
Dogged Dieting: Low-cal canines enjoy longer life
The first completed diet-restriction study in a large animal shows that labrador retrievers fed 25 percent less food than those allowed to eat as much as they desired tend to live longer and suffer fewer age-related diseases.
- Earth
September’s Science: Shutdown of airlines aided contrail studies
The shutdown of commerical aviation within the United States for 3 days after Sept.
