
Aircraft Communication, 1915

Aircraft Communication, 1915

9,000-Year-Old Decapitated Skull Found under Amputated Hands
The discovery may be evidence of the oldest known case of ritual beheading in the New World


Teenage Clockmaker Upholds Long Scientific Tradition
As Daniel Boorstin, former director of the Smithsonian National Museum of History, once put it, clockmakers were the "pioneer scientific instrument makers"

Bigger Guns, 1915

Einstein in the Wild: We Found Him [Slide Show]
Readers across the globe sent us photos of the rock star scientist

Ig Nobel Prizes Mark a Quarter Century of Irreverent Science Humor
From levitating a live frog with magnets to a study of soggy cereal, awards foster enlightenment through laughter

Obama Has Done More for Clean Energy Than You Think
The Great Recession enabled bold steps to seed a clean-energy revolution

100 Years of General Relativity: Scientific American Special Issue

Copernicus, Darwin and Freud: A Tale of Science and Narcissism
Freud did not originate his famous description of Copernicus and Darwin as deflators of humanity's anthropomorphic world-view.

Fears of Future Belligerence Should Not Derail Iranian Nuclear Deal
While many provisions of the proposed agreement expire after 15 years, the dynamics of the Middle East are shifting too quickly to predict what lies in store

Terse Titles Cited
Scientific papers with shorter titles receive more citations than those with long-winded headings

Quantum 'spookiness' passes toughest test yet
A cunning experiment plugs loopholes in previous demonstrations of quantum "spookiness," a concept that galled Einstein