Uncategorized
- Anthropology
South African find gets younger
The partial skeleton of a human ancestor previously found in South Africa dates to about 2.2 million years ago, roughly 1 million years younger than the original estimates.
- Earth
Pesticides mimic estrogen in shellfish
Two common water pollutants can function in shellfish as estrogen does, but they have different behavioral effects on two species.
- Astronomy
The magnetic link between star and planet
Astronomers have for the first time directly measured the magnetic field of a star known to host a giant planet.
- Tech
A nano–cheese slicer
Stringing a carbon nanotube between two needles yields a nanoscale cheese knife that could improve slicing of biological samples.
- Health & Medicine
Salad Doubts
Researchers are looking into new ways to sanitize harvested produce and prevent foodborne pathogens from infecting people.
- Humans
Peer Review under the Microscope
The traditional method for communicating results of scientific research could get its biggest facelift in hundreds of years.
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The paucity of comments received by Nature in its Web experiment confirms the obvious: Few scientists can afford the time for peer reviews. Journal editors get paid for their work, so why not compensate outside reviewers? Furthermore, as professional rivalry is a genuine concern, why not eliminate the potential for bias by shielding the names […]
- Humans
Letters from the December 16, 2006, issue of Science News
Familiar pattern I am a retired high school mathematics teacher who has quilted mathematical ideas for over 20 years. Currently, I am working on a quilt called Pascal’s Pumpkin. I was totally excited by “Swirling Seas, Crystal Balls: Spirals of triangles crinkle into intricate structures” (SN: 10/21/06, p. 266) and began to think about quilting […]
- Math
Travels of a Shopper
Shoppers tend to be a lot less efficient than they could be when picking up groceries at the supermarket.
- Humans
From the December 5, 1936, issue
New forms of glass, a new element in space, and Einstein's automatic camera.
- Earth
Sustainable Table
Created by the GrassRoots Action Center for the Environment (GRACE), this Web site aims to help consumers understand problems with the nation’s food supply and offer viable solutions and alternatives. It provides an introduction to the burgeoning sustainable food movement and information about organizations, people, and programs that are trying to change the way people […]
- Earth
Dim Harvest: Asian air pollution has limited rice yields
Thick clouds of air pollution over southern Asia and increased concentrations of greenhouse gases in the atmosphere worldwide have reduced rice harvests in India for the past 2 decades.
