Uncategorized
-
19833
The fact that various teas contain beneficial antioxidants is well-known. Many claim to be slimming. Is it only oolong that inhibits fat absorption, and, if so, why? James C. MatthewsCoral Springs, Fla. Lauren Budd of the University of California, Davis works only with oolong. She acknowledges that research by others has shown a slimming effect […]
- Earth
Emissions tied to global warming are on the rise
The United States emitted nearly 1 percent more greenhouse gases in 2005 than it did in the year before.
- Health & Medicine
Embryos, please
Almost half of Spanish couples who were asked recently to donate excess embryos for stem cell research did so.
- Health & Medicine
Therapeutic sorghum?
Sorghum's inflammation-fighting activity is comparable to that of a prescription arthritis medicine, animal research indicates.
- Physics
Broadband vision
Cells that act like optical fibers could explain why vertebrate retinas have sharp vision despite being mounted backwards.
- Plants
Tiny pool protects flower buds
A rare structure on flowers, tiny cups that keep buds underwater until they bloom, can protect the buds from marauding moths.
- Physics
Spinning into Control
High-speed flywheels could replace batteries in hybrid vehicles and help make the electrical grid more reliable.
-
19832
Doesn’t this article on flywheels leave out a significant aspect: the gyroscope effects of a rotating large mass? Wouldn’t it be a benefit for moving installations (stabilization) and a problem for immobile installations? Lee HukillPalo Alto, Calif. In the article, the flywheels depicted appear to have vertical axles. I presume that this prevents inertial forces […]
-
Our Microbes, Ourselves
Trillions of microbes live in the human gut and skin, and they may be essential to health.
-
19831
Kudos for Science News for this article. I think this holistic view of the microbe community—rather than investigating the single organism—offers a hopeful path to numerous insights for preventive measures for optimum health. Terry MooreCorvallis, Ore.
- Math
Miles from Nowhere
Scientists have developed a new technique for calculating the ecological value of road-free areas of land and representing them geometrically.
- Humans
Letters from the May 19, 2007, issue of Science News
Merry go round When considering a spin rate of 1,122 revolutions per second, has anyone determined the diameter of the neutron star XTE J1739-285 (“Dance of the dead,” SN: 3/17/07, p. 173)? If, for example, it were the same diameter as Earth, it would be traveling far in excess of the speed of light at […]
