Tech
- Tech
Smells Like the Real Thing
Chemical sensors that take cues from the mammalian pattern-based approach to identifying odors and flavors create colorful readouts that even the eyes can distinguish.
- Tech
Power Play: Shift from loss to gain may boost silicon devices
By tapping solar cell-like behavior in a silicon optical amplifier, engineers have shown that light-manipulating components made from silicon can become power recyclers rather than power wasters, an advance that boosts prospects for silicon optical devices.
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Hot Prospect: Simple burner keeps pollution counts down
A new type of combustion chamber reduces pollution with less complexity and a safer, more reliable design.
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Blinding spies’ digital eyes
To prevent unauthorized picture taking, an automated antispy system spots digital cameras and zaps them with confounding flashes of light.
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Humanlike touch from chemical film
A nanoparticle-laden, pressure-detecting membrane feels textures with about the same sensitivity as human skin.
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Pumping Alloy
A new way to power artificial muscles improves the prospects for making lifelike humanoid robots and prosthetic limbs.
- Tech
How Products are Made
What does it take to manufacture an accordion or a zipper? Organized alphabetically by product name, this intriguing Web site provides details on how a wide variety of everyday and basic products are made. Go to: http://www.madehow.com/
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Quantum-Dot Leap
Multiple electrons from photons in quantum dots could be a boon to solar cells and other technologies.
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Directing tubular traffic
Researchers have shown that they can steer individual protein tubes along tiny channels of a glass chip.
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Rounding out an insect-eye view
A new humanmade version of an insect's compound eye could perform like the real thing.
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Illuminating Changes
Indoor lighting is undergoing a dramatic metamorphosis toward energy-conserving systems that rely on solid-state technologies.
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Speed Bump: Tip’s tricks sort DNA, write at nanoscale
An atomic-force microscope tip has been transformed into a microinstrument for sorting DNA and depositing nanostructures by means of cleverly applied voltages that propel molecules along the tip's surface.
