5,029 results
- Archaeology
Openings to the Underworld
Archaeological finds indicate that ancient groups in Mexico and Central America, including the Maya, held beliefs about a sacred landscape that focused on natural and human-made caves as sites of important ritual activities and burials.
- Tech
Taming High-Tech Particles
Researchers are beginning to study whether nanomaterials could have unintended negative consequences in the human body or the environment.
- Health & Medicine
Drugs slow diabetes patients’ kidney damage
Two drugs normally prescribed for high blood pressure help forestall kidney damage in people with type 2, or adult-onset, diabetes.
- Physics
Model may expose how friction lets loose
Rather than just grinding past each other, sliding surfaces may tremble with minuscule ripples that overcome friction as they move along.
-
A Maverick Reclaimed
A small band of researchers wants to resuscitate the ideas of Egon Brunswik, a brilliant but tragic psychologist who died almost 50 years ago.
-
Fungi slay insects and feed host plants
Researchers are discovering that some plants get their nutrients by robbing nitrogen from the flesh of soil-dwelling insects.
- Ecosystems
Streamers could save birds from hooks
A test on active longline fishing boats finds that an inexpensive array of streamers can reduce accidental deaths of seabirds by more than 90 percent.
- Astronomy
The Milky Way’s Middle
Sensitive X-ray, infrared, and radio telescopes are now providing an extraordinarily clear view of the dust-shrouded center of our galaxy.
- Earth
Global Warming Debate Gets Hotter
President Bush gets the global warming report he commissioned just days before he meets with European leaders.
- Health & Medicine
Memory may draw addicts back to cocaine
The hippocampus may be the seat of powerful cravings for cocaine in rats and play a key role in drug-addiction relapse.
-
From the April 4, 1931 issue
PASCHAL FLOWERS BLOOM ON PRAIRIES OF THE WEST Easter-Tide is remembered in America by two names, one of a place, the other of a flower. When the youth-seeking Ponce de Leon sighted the coast of the New World it was on Easter morning, and accordingly he named the place he had found Pascua Florida, or […]
-
Anticancer Protein Locks onto DNA
The protein encoded by the normal form of BRCA1 attaches to DNA directly, seeks out unusual DNA structures, and joins multiple DNA strands together—all activities suggesting a direct role in DNA repair.
