A Solar Grand Plan
An ambitious scheme would enable solar power to end U.S. dependence on foreign oil and slash greenhouse gas emissions by 2050.
The SciAm 50
Which researchers, companies and architects of industrial and government policy are leading the most important trends shaping tomorrow's technologies? Our annual roundup of world shakers gives credit where it is due.
Taming Vessels to Treat Cancer
Drugs that restore order to the chaotic blood vessels inside a tumor open a window of opportunity for attacking it.
Second Thoughts about Fluoride
New research indicates that a cavity-fighting treatment could be risky if overused.
Self-Powered Nanotech
Tiny systems that draw waste energy from their surroundings could power nanosize machines.
Hotspots Unplugged
Long considered fixed founts of molten material from deep within the planet, the hotspots that raise islands now join the list of the earth's moving parts.
The Human Instrument
When judged by its size, our vocal system fails to impress as a musical instrument. How, then, can it produce all those remarkable sounds?
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