Hackers of the world, unite

�Repair is green�repair is joyful�repair injects soul and makes things unique.� Those are some of the claims of Ifixit�s "Self-Repair Manifesto," which is not a self-help tract but a hacker�s call to arms.

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Corporate Sci-Fi: the Luna Ring

The Tokyo-based Shimizu Corporation is one of the world's leading construction and engineering contractors. It's also a prolific producer of corporate science fiction: fanciful, high-concept design projects that offer glimpses of astonishing futures. Its "Luna Ring" envisions such a future for the moon�and for Shimizu.

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E-bestsellers: Times list goes digital

The New York Times bestseller list not only measures book sales, it also sells books; millions of readers make selections based on what they find there. Starting early next year, the New York Times Company will try to bring that clout to bear on the electronic books market.

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The Periodic Table of Videos

A great series of videos made by the chemistry department at the University of Nottingham in England�one for each of the elements in the periodic table, 118 in all. It's full of insights�and it will have you wondering about the activation energy of professor Martyn Poliakoff's hair.

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Robothespian takes the stage

The uncanny valley is getting crowded. A female-modeled version of Geminoid, roboticist Hiroshi Ishiguro's creepy android, is now appearing opposite a human actor in Japan in a short play entitled Sayonara�as in, "sayonara, humans."

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Does Tetris beat post-traumatic stress?

The iconic twentieth-century computer game continues to exert an addictive appeal. And if researchers at Oxford University are right, it may be a uniquely therapeutic way to blunt the effects of traumatic experience as well.

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