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Opinion, arguments & analyses from guest experts and from the editors of Scientific American

In praise of scientific error

My wife has first dibs on our New Yorker each week, so I only just got around to reading Jonah Lehrer’s piece on the scientific method in last week's issue, which has been getting so much attention from my fellow science writers...

December 20, 2010 — George Musser

Dimming city lights may help reduce smog

SAN FRANCISCO—City lights may do more than hide a starry sky: they could indirectly worsen daytime smog. Measurements of light pollution over Los Angeles have revealed a brighter glow than chemists expected—bright enough to destroy chemicals that would otherwise help cleanse the air during a dark night...

December 17, 2010 — Davide Castelvecchi

Chevy Volts to hit the road as GM meets year-end deadline

Amidst frigid weather conditions, 350 ice-covered Chevrolet Volts hit the roads aboard transport trucks headed from General Motors's Detroit assembly plant to car dealerships in California, New York, Texas and Washington, D.C...

December 14, 2010 — Larry Greenemeier

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