Tech
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Tech
Chameleon-like robot can change hue
Dye-filled microchannels help machine blend in, or stick out.
By Meghan Rosen -
Tech
Camera hack can spot cleaned-up crimes
Exploiting a standard tool of art conservation can help police find painted-over bloodstains.
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Tech
FDA bans BPA in baby bottles, cups
From now on, U.S. manufacturers may no longer produce polycarbonate baby bottles and sippy cups (for toddlers) if the clear plastic had been manufactured from bisphenol A, a hormone-mimicking compound. Long-awaited, the announcement is anything but a bold gesture. The Obama administration decided to lock this barn door after the cow had died.
By Janet Raloff -
Tech
Interactive map like GPS for Roman Empire
A simulation calculates the cost in days and dinarii of shipping goods throughout the classical world.
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Tech
The descent of music
Using an evolutionary process, researchers create pleasing tunes out of grating noise.
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Tech
Court ‘shares’ researchers’ e-mails, intellectual property
“A situation has arisen involving scientists at the Woods Hole Oceanographic Institution (WHOI) that should concern all those who value the principles of academic freedom and responsibility,” warns top WHOI officials. They were responding to a court order requiring that two WHOI scientists turn over 3,500 emails and other documents to BP. Included in the information was intellectual property that outsiders could exploit.
By Janet Raloff -
Tech
Bacterial trick keeps robots in sync
Communicating information about the environment allows a stumbling machine to rejoin its group.
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Tech
Imperfect chip pretty darn good
Faster, smaller and more efficient, processors with that cut corners can still be good for some applications.
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Tech
DNA used as rewritable data storage in cells
Genetically encoded memory could track cell division inside the body.
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Ecosystems
Darwin’s Devices
What Evolving Robots Can Teach Us About the History of Life and the Future of Technology, by John Long.
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Tech
Paralyzed woman grips, sips coffee with robot arm
For the first time, a brain-computer interface is powerful enough to enable useful movement in human patients.