Song Lyrics, Twitter Help Chart Public Mood
Trying to divine the mood of a group of people is hard and requires trust in their answers. A new method has researchers whistling a happier tune.
Your Next M.D. Might Be a PDA
Handheld sensors using specialized — and relatively cheap — biosensors may deliver an instant diagnosis of diseases, contaminated water and biological attacks.
Global Warming: the Archaeological Frontier
Melting glaciers yield evidence on new theories of Asian migration to the Americas. Underwater robots search the sea bottom, looking for more.
CSI: Pompeii
The ancient Romans of Pompeii were already parboiled when the lava arrived, according to a new investigation with scary implications for modern-day Naples.
Monogamy, Polygyny and the Well-Tended Garden
The advent of agriculture created a new kind of seed-scattering strategy.
Air Conditioning Using 90 Percent Less Power
A U.S. government project combining two well-known technologies — swamp coolers and water-absorbing compounds — generates an amazingly efficient air conditioner.
The Best Fiscal Stimulus: Trust
How the potent hormone of empathy, oxytocin, is shaking up the field of economics.
Solar’s New Dawn, With Applicator Brush
Advances in technology make low-efficiency but wide areas solar energy newly practical.
Standing in Line to Cap the Spill
Even for a proven energy innovator like James Dehlsen, the path to offer solutions to the Gulf oil spill is uphill and rocky.
Whipping Up Kindness in the Lab
Oxytocin, already dubbed the 'cuddle hormone,' may deserve a new moniker as the 'kindness molecule.'