Uncategorized
- Health & Medicine
No heart risk from hormones taken near menopause
Contrary to some earlier indications, hormone replacement therapy might not impart heart risks to women who take it during their 50s.
- Physics
Liquid origami
A French team has created the first mini-origami figures that fold themselves around droplets of water.
- Earth
Dry winters heat European summers
When southern Europe receives scant rainfall in the winter, the whole continent tends to bake the following summer.
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Uncommon cancer gets start in muscle cells
Synovial sarcoma, a cancer thought to arise from joint tissue, actually forms in nascent muscle cells, a mouse study shows.
- Animals
Killer mice hit seabird chicks
A surveillance video shows a worrisome sight: house mice nibbling to death rare seabird chicks on a remote island breeding colony.
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19825
The NASA researchers baffled in this article by the hexagonal shape in Saturn’s soupy atmosphere at its northern pole should read “As waters part, polygons appear” (SN: 6/3/06, p. 348). It is worth investigating whether there is a similar phenomenon—I still suspect some sort of standing sine wave effect—at work in both cases. Ellery FrahmMinneapolis, […]
- Planetary Science
A hexagon on the ringed planet
NASA scientists are puzzled by a giant, hexagon-shaped feature that covers Saturn's entire north pole.
- Earth
Flotsam Science
Researchers have harnessed the power of flotsam—floating items as diverse as tennis shoes, tub toys, and hockey gloves—to chart the path and speed of the Pacific Subarctic Gyre, a group of currents in the North Pacific Ocean.
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19824
The lines on the cave ceilings remind me very much of what a large pot of finger paint looks like after children extract what they want to draw with. I could easily see my children (especially when younger) drawing on their own faces and bodies all kinds of designs using the colored clay. Dan WoitulewiczDetroit, […]
- Anthropology
Children of Prehistory
Accumulating evidence suggests that children and teenagers produced much prehistoric cave art and perhaps left behind many fledgling attempts at stone-tool making as well.
- Humans
Letters from the April 28, 2007, issue of Science News
Long ago gas Finding CO2 levels that are 2,500 times higher in 5,000-year-old fulgurites than in modern samples, scientists have speculated that the extra CO2 resulted from vaporization of organic material by lightning (“Stroke of Good Fortune: A wealth of data from petrified lightning,” SN: 2/17/07, p. 101). Could some of this gas reflect elevated […]
- Earth
Earth 911
Earth Day comes only once a year, but you can give Mother Earth a gift every day. The site Earth 911 makes it easy to be environmentally responsible. The Web portal offers ideas on how to recycle old electronics, dispose of hazardous materials, conserve energy, and shop green—and all its tips are tailored to your […]
