5,012 results
- Animals
Many fish run on empty
Many fish eat all the time, while some others spend their days going from brief feast to lengthy famine.
- Science & Society
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
-
Anthrax Stopper: Viral enzyme detects, kills bacterium
A virus that preys upon the anthrax bacterium produces an enzyme that can be exploited to detect and kill the biowarfare agent.
- Math
Goldbach’s Prime Pairs
Like the elements in chemistry, prime numbers serve as building blocks in the mathematics of whole numbers. Evenly divisible only by themselves and one, primes are a rich source of speculative ideas that mathematicians often find simple to state but difficult to prove. The Goldbach conjecture is a prime example of such a conundrum. In […]
- Humans
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
- Health & Medicine
Making Bone: Novel form of vitamin D builds up rat skeleton
A newly synthesized form of Vitamin D induces bone-making cells to capture calcium and fortify bone mass in rats, suggesting it might work against osteoporosis in people.
-
Happy Anniversary
In the 50 years since the discovery of DNA's double helix structure, scientists have developed striking new ways to visualize the molecule.
- Chemistry
Plastic Electric
Scientists are finding new ways to improve the molecular order and electrical conductivity of a commercially important conducting plastic.
- Planetary Science
Martian History: Weathering a new notion
Researchers suggest that intermittent impacts by huge asteroids and comets some 3.5 billion years ago profoundly influenced the landscape of Mars.
-
Drugs order bacteria to commit suicide
Seeking to explain how antibiotics work, scientists find a protein that commands bacteria to kill themselves.
- Humans
From the October 15, 1932, issue
THE SABER-TOOTH STRIKES The artist has made a sketch of a dramatic scene involving a horselike hornless rhinoceros. It shows the poor animal attacked by a long-tailed saber-toothed tiger. The great cat is pictured as attacking much as a modern tiger or lion sometimes attacks: gripping a hard hold with its forelegs, slashing at its […]
- Health & Medicine
Dynamite discovery on nitroglycerin
Scientists have found a long-sought enzyme that may be behind nitroglycerin's dilation of blood vessels.
