Uncategorized
- Materials Science
Scientists belt out a novel nanostructure
Researchers have used metal oxides to make microscopic ribbonlike structures that could prove useful for developing future nanoscale devices.
-
Self-illusions come back to bite students
College freshmen who greatly overestimate their academic potential feel confident and happy for a while, but as they move toward graduation, these students feel progressively worse about themselves and become less involved with their schoolwork, a new study finds.
-
18903
One can question the basic assumptions of the people doing the study described in “Sedentary off-hours link to Alzheimer’s.” One would hope that going to church is not less an intellectual endeavor than others, though it may be less physical than knitting or gardening. Even TV can be intellectual if viewers are testing their ability […]
- Health & Medicine
Sedentary Off-hours Link to Alzheimer’s
People who have Alzheimer's disease in old age were generally less active physically and intellectually between the ages of 20 and 60 than were people who don't have the disease.
- Math
Mayan Mars
The curiously looping movements of the planets relative to the stars have presented all sorts of puzzles to keen, patient observers of the night sky. In 1601, Johannes Kepler (1571-1630) undertook the challenge of deciphering the orbit of Mars and developing a mathematical theory of its motion to fit observations of the planet’s changing position […]
- Physics
When warming up causes cooling down
Under the right circumstances, heating a tiny cluster of sodium atoms makes its temperature fall.
- Physics
Physicists get B in antimatter studies
New observations that subatomic particles called B mesons decay differently from their antimatter versions may help explain why the universe is made almost entirely of matter, not antimatter.
-
Quoll male die-off doesn’t fit pattern
Males of a ferretlike marsupial called a quoll die off after one mating season-unusual behavior that suggests the need for new theories of why such deaths occur after mating.
-
Stick insects: Three females remain
An Australian expedition locates three females of a big, flightless stick insect species thought to have gone extinct.
-
Why Fly into a Forest Fire?
Scientists puzzle over why some wasps and beetles race to forest fires.
-
From the March 7, 1931, issue
CANYON DE CHELLY NOW NATIONAL MONUMENT A famous canyon of the West, with ancient Indian ruins under the shelter of its thousand-foot red walls, has been given the status of a National Monument, by an act of Congress recently signed by the President. This is the Canyon de Chelly in Arizona, with its tributaries, Canyon […]
- Tech
Flying Leap
In the history of human flight, first came the daring tinkerers who gave wings to the pent-up human desire to soar. In the wake of their successes came a remarkable proliferation of flying machines, spacecraft, and colorful characters. At this Web site, the American Institute of Aeronautics and Astronautics celebrates these achievements with an annotated […]
