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Letters from our readers.
Gregory Stephanopoulos explains challenges in converting biomass to biofuels.
Virtual worlds need the freedom to self-correct, argues Robert Bloomfield.
William J. Mitchell says that technology makes architectural innovation possible.
Materials advances could bring color, video, and flexibility.
One photovoltaic wire could power a sensor; arrays could yield cheaper electricity.
Growth in social-networking sites explodes abroad.
Images of camps and destroyed settlements bolster abuse reports.
Neurons in 100 hues spotlight disease, development.
Navigenics promises genomic testing and genetic counseling.
What I learned about network television at Dateline NBC.
Google’s director of research talks about the evolution of Web search.
In this era, the rectilinear glass box has become a quaint relic of the predigital past.
A fully implantable hearing aid is showing promise.
Four decades ago, Norman E. Borlaug developed a wheat variety that fed the world. Now he’s battling a pathogen whose spread could cause starvation.
Does Radiohead’s Internet release of its latest album tell us anything about the future of the music business?
Technology Review takes apart Bug Labs’ modular open-source hardware system and explains how it works.
Devices made of heart tissue could screen drug candidates and be used to power implantable robots.
New publications, experiments and breakthroughs in nanotechnology–and what they mean.
New publications, experiments and breakthroughs in information technology–and what they mean.
New publications, experiments and breakthroughs in biotechnology–and what they mean.
Politics continue to complicate energy policy.