Uncategorized
- Ecosystems
Brazil Nut Loss Looms: Harvest may be too heavy to last
A study of 23 spots in Amazonian forests has raised the question of whether the collection of Brazil nuts—praised as a model of gentle forest use—has reached such levels that it may not be sustainable.
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- Tech
Gel Bots? Vibrated goo mimics slithery motions
The ability of soft, jellylike hydrogels to move as do snails, snakes, and inchworms may point the way to a new class of squishy robots that promise to be simple, quiet, and versatile.
- Tech
Gel Bots? Vibrated goo mimics slithery motions
The ability of soft, jellylike hydrogels to move as do snails, snakes, and inchworms may point the way to a new class of squishy robots that promise to be simple, quiet, and versatile.
- Archaeology
Bones of Invention: German cave yields Stone Age figurines
Three ivory figurines found in southwestern Germany may belong to one of the world's oldest known art traditions, dating to more than 30,000 years ago.
- Archaeology
Bones of Invention: German cave yields Stone Age figurines
Three ivory figurines found in southwestern Germany may belong to one of the world's oldest known art traditions, dating to more than 30,000 years ago.
- Materials Science
Crystal Clear: Liquid crystal sensor plays nature’s game
By fixing the components of a cell membrane to a liquid crystal, researchers devised a sensitive and high-speed sensor for detecting chemical and biowarfare agents.
- Materials Science
Crystal Clear: Liquid crystal sensor plays nature’s game
By fixing the components of a cell membrane to a liquid crystal, researchers devised a sensitive and high-speed sensor for detecting chemical and biowarfare agents.
- Earth
Seasonal Weather
The Aboriginal people of Australia had their own way of defining the seasons, based on local weather patterns. Australia’s Bureau of Meteorology has created a Web site that illustrates several of these seasonal weather calendars, established thousands of years ago. Unlike the European and American spring, summer, autumn, and winter, the indigenous versions often include […]
- Earth
Seasonal Weather
The Aboriginal people of Australia had their own way of defining the seasons, based on local weather patterns. Australia’s Bureau of Meteorology has created a Web site that illustrates several of these seasonal weather calendars, established thousands of years ago. Unlike the European and American spring, summer, autumn, and winter, the indigenous versions often include […]
- Earth
Ash Clouds: Severe storms can lift smoke into stratosphere
New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.
