Uncategorized
- Physics
Doppler effect takes a spin
Light’s twistiness allows researchers to measure rotating object’s speed.
- Humans
Y chromosome analysis moves Adam closer to Eve
A pair of genetic studies has pushed back age of men's most recent common ancestor.
- Neuroscience
Camping resets internal clock
After a week in the wild, people went to bed and got up earlier.
- Health & Medicine
Going out to lunch zaps mental focus
Sharing a midday meal with friends could lead later to errors at work.
- Earth
Magma can speed to the surface, powering volcanoes
Fast ascent of molten rock could help scientists predict eruptions.
- Planetary Science
Saturn’s tides drive icy moon’s plumes
Enceladus' chilly jets ebb and flow in time with its planet's tug.
- Life
Tigers meet, mix in forest corridors
In India, narrow strips of wild land connect small groups of cats.
- Animals
Oxygen boost aided carnivore evolution in Cambrian explosion
Atmospheric change and rise of predators caused burst in complexity of life.
- Anthropology
Mummified Incan teen drank, did drugs
Girl, who was sacrificed, may have been sedated by alcohol, coca leaves.
- Math
Flatland and its sequel bring the math of higher dimensions to the silver screen
In 1884, Edwin Abbott wrote a strange and enchanting novella called Flatland, in which a square who lives in a two-dimensional world comes to comprehend the existence of a third dimension but is unable to persuade his compatriots of his discovery. Through the book, Abbott skewered hierarchical Victorian values while simultaneously giving a glimpse of […]
- Climate
Wetter permafrost clings to carbon better
In 12-year lab study, moist soil samples released less greenhouse gas as they warmed.
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Letters to the editor
Not-so-smart perception Researchers studying associations between IQ and selected visual tasks (“Less is more for smart perception,” SN: 6/29/13, p. 18) report that tracking small moving foreground objects, a task at which high-IQ subjects excelled, is often more important than detecting large-object motion or attending to background activity. They suggest that for driving or walking […]
