Uncategorized
- Humans
Letters from the January 28, 2006, issue of Science News
Oil-for-food exchange Several decades ago, I heard of the anecdotal correlation between the rise of hydrogenated oils in our foods and the rise of colon cancer. The Swedish study that correlated high dairy-fat intake with lower risk of colon cancer (“Dairy fats cut colon cancer risk,” SN: 11/19/05, p. 333) might be reexamined to see […]
- Health & Medicine
Old idea fights ovarian cancer
Delivering chemotherapy directly into the abdomen improves survival in women with advanced ovarian cancer.
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Polar-opposite bacteria swim south in the north
Some aquatic bacteria that orient themselves using Earth's magnetic field swim in the opposite direction from what researchers typically expect.
- Humans
New law to limit politicized science
A new law prohibits three federal agencies from knowingly disseminating bad data and bans application of any political litmus test to experts under consideration as advisers.
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Enzyme measures RNA using natural ruler
An enzyme that chops RNA into identically sized pieces uses itself to measure those lengths.
- Chemistry
Reactions on the spot
Researchers report that they have engineered a miniature pipette that can dispense solutions at volumes of a billionth of a billionth of a liter.
- Materials Science
Engineering membranes from cellular parts
Chemists have for the first time spun the molecules that make up cellular membranes into fibrous networks.
- Anthropology
India cultivated homegrown farmers
A new analysis of Y chromosome structure supports the view that around 10,000 years ago, people living in what's now India took up farming rather than giving way to foreigners who brought agriculture into South Asia.
- Math
College Friendships and Social Networks
E-mail messages provide insights into the evolution of social networks.
- Tech
Bizarre Stuff
Curious about airships or zoetropes? Want to build one? Created by Brian Carusella, this Web site spotlights unusual inventions and bizarre items. For each object, the site offers a history and review of how it was constructed. It features lots of ideas for interesting science projects and home experiments, along with easy-to-follow advice. Go to: […]
- Humans
From the January 18, 1936, issue
A small model of a large telescope, pain relief for angina, and the lightest solid ever known.
- Earth
Sinking Mercury: Light-based reactions destroy toxic chemical in Arctic lakes
Sunlight triggers the entry of poisonous mercury into polar lakes, but it also removes most of the toxic compound before fish can consume it.
