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The Memory Code

Researchers are closing in on the rules that the brain uses to lay down memories. Discovery of this memory code could lead to the design of smarter computers and robots and even to new ways to peer into the human mind

By Joe Z. Tsien

The Evolution of Cats

Genomic paw prints in the DNA of the world's wild cats have clarified the cat family tree and uncovered several remarkable migrations in their past

By Stephen J. O'Brien and Warren E. Johnson

Broadband Room Service by Light

Encoded light transmissions can provide the wireless devices in a room with multimedia Web services such as videoconferencing, movies on demand and more

By Mohsen Kavehrad

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