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From the editor in chief
Insights and opinions from our readers
In a technique that could overcome a major hurdle to gene therapy, small electric jolts push therapeutic genes into the cells that need help.
To get crystal clear MRI pictures of the lungs, just take a deep breath–of helium.
New software analyzes human speech to tell when a person is irritated or impatient.
A chip that combines optics and electronics generates light 100 times more efficiently than previous devices.
Computer-guided laser beams create microscopic 3-D structures.
Who needs batteries? Small gadgets could draw power from the tiny tremors in your office or car.
Concerns over particle dangers could slow nanotech’s growth.
The latest biotech “-omics,” metabolomics, could lead to earlier detection of a wide array of diseases.
Hot plasmas could dispose of toxic waste and produce hydrogen, without the harmful byproducts of combustion.
Robotic “power pants” use sensors and artificial muscles to give you an extra jolt of strength.
New hip-replacement technology allows smaller incisions, reducing pain and speeding recovery.
Software that analyzes system log files could help automate computer networks.
Al Gross’s 1938 invention of the walkie-talkie launched mobile communications.
Sarnoff shows how to turn the feeds from many surveillance cameras into a unified 3-D scene.
Robots today are where computers were in 1978; soon, they’ll be as pervasive as the Web.
Consumers have a right to know the diagnoses made by their cars’ onboard computers.
Millions of Japanese schoolgirls can’t be wrong: there’s always a market for instant gratification.
Stanford University computer scientist David L. Dill on the security of electronic voting.
Cooligy’s micromachined system chills chips, paving the way for faster, more powerful computers.
The 1s and 0s of high-definition television, standard in U.S. home theaters by 2006.