2,657 results
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- Physics
Law and Disorder: Chance fluctuations can rule the nanorealm
A tug-of-war in a water droplet demonstrates that random fluctuations wield more than enough muscle to give nanoscale machines trouble.
- Health & Medicine
Toxin Trumped: New malaria vaccine protects mice
An experimental vaccine neutralizes a toxic molecule made by malaria-causing parasites.
- Math
The Incredible Pi Code
Extending this colored grid reveals (to some eyes) a provocative portrait. Researchers have expended a great deal of effort computing as many of those digits as computer technology and mathematical methods allow. Last year, Yasumasa Kanada of the University of Tokyo calculated pi to 206,158,430,000 decimal digits. A high school student has now smashed that […]
- Anthropology
Evolution’s Surprise: Fossil find uproots our early ancestors
Researchers announced the discovery of a nearly complete fossil skull, along with jaw fragments and isolated teeth, from the earliest known member of the human evolutionary family, which lived in central Africa between 7 million and 6 million years ago.
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Numbers in Mind
Initial reports of babies' basic counting abilities have inspired a wave of new research and a spirited debate about what infants really know about numbers.
- Health & Medicine
Could this be the end of the monthly period?
Two compounds stop menstruation in monkeys, suggesting that similar drugs might someday enable women to bypass monthly bleeding.
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Mom’s eggs execute Dad’s mitochondria
Sperm may tag their own mitochondria for destruction inside the fertilized egg.
- Earth
Algae Turn Fish into a Lethal Lunch
Scientists demonstrated that some marine mammals have died from eating fish tainted with a neurotoxic diatom.
- Health & Medicine
Clever Combo: Hybrid vaccine prevents West Nile virus in mice
A vaccine fashioned from pieces of dengue virus and West Nile virus protects mice against West Nile fever, suggesting it might work in people.
- Health & Medicine
Will new approach cure Chagas disease?
Scientists may be able to disable the parasite that causes Chagas disease by targeting the enzyme it uses to make essential fats.
- Humans
Smallpox redux: World body suggests keeping the virus
Fear of bioterrorism has led the World Health Organization to postpone its 2002 deadline for destruction of smallpox virus stocks so that scientists can refine current vaccines and improve defenses against the disease.
