Uncategorized
- Ecosystems
Killer Consequences: Has whaling driven orcas to a diet of sea lions?
Killer whales may have been responsible for steep declines in seal, sea lion, and otter populations after whaling wiped out the great whales that killer whales had been eating.
- Tech
The Daily Flicks: Morphing ink may bring video to newspapers
New types of electronic-paper pixels may eventually make it possible to view full-color video clips in your morning newspaper.
- Chemistry
Mollusks point way toward better drugs
Growing drug crystals on different polymer surfaces may lead to improved medicines.
- Materials Science
Charging cartilage
A hybrid material made of biodegradable polymers and carbon nanotubes yields an optimal scaffold for growing cartilage.
- Materials Science
Soft spheres yield photonic structures
A novel technique for patterning light-guiding channels through photonic crystals made of hydrogel nanoparticles may lead to faster, all-optical telecommunications technologies.
- Earth
Mapping carbon dioxide from space
An orbiting observatory in space will sense atmospheric carbon dioxide levels around the globe, creating a detailed map of the greenhouse gas' sources and sinks.
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19344
My attention was immediately drawn to this article. You see, in the late 1970s, as a graduate student at the University of California, Davis, I developed a snake-tethering technique with the assistance of one of the campus veterinarians, Scott E. McDonald. The article falsely attributes rattlesnake leashing to others. David F. HennessySacramento, Calif. Yes, David […]
- Animals
Leashing the Rattlesnake
Even in the 21st century, there's still room for old-fashioned, do-it-yourself ingenuity in experimental design for studying animal behavior.
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19275
The reporting of the activity surrounding the tragic loss of Columbia continues to anger me. Columbia was lost because of program ignorance of a flight condition that should not have been permitted to exist or continue. It is a cruel and self-serving action to criticize a wonderful piece of engineering because its operators have been […]
- Planetary Science
After the Tragedy
NASA's plan to return the space shuttles safely to flight after the Columbia accident is coming under intense scrutiny.
- Humans
From the September 23, 1933, issue
LEAFY SUCCULENTS SOLVE PROBLEM SET BY DESERT Desert plants have a particularly hard problem to solve, set by that old Sphinx, the desert itself, and if they fail to solve it, the penalty is the same as that exacted in the old Greek myth–they must die. They must spread a sufficient chlorophyll surface to the […]
- Planetary Science
Earthly Field Trip to Mars
Interested in seeing Martian landscapes and features up close on Earth? This Web site offers kids a “field trip” to formations in the state of Washington that resemble those found on the Red Planet. Take a look at floodplains, volcanoes, basalt columns, lakebeds, canyons, sand dunes, and more. Go to: http://www.kidscosmos.org/field-trip-to-mars.html
