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Commemorative Calculus: How an Algorithm Helped Arrange the Names on the 9/11 Memorial

At first glance--and even after deep scrutiny--the names on a new memorial to those killed on September 11, 2001, seem randomly arrayed. The names are not arranged alphabetically nor, for the most part, are they presented in labeled groups. But the memorial's layout is anything but random

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Use It Better: The Smart Ways to Pick Passwords

If you want to be absolutely secure, you should make up a different password for every single Web site you visit. Each password should have at least 16 characters, and it should contain a scramble of letters, numbers, and punctuation; it should contain no recognizable words.

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Pals and playtime may turn bad fat into good

Researchers may have found a new way to put ordinary fat cells to work, changing them from lazy blobs that store our extra calories into energy-burners.

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NASA Unveils New Detailed Photos of Apollo Moon Landing Sites

New photos of several Apollo moon landing sites were released today (Sept. 6), showing extraordinary new details about three areas on the lunar surface that were visited by humans. The images include the sharpest views yet of tracks left by the astronauts and their lunar rovers

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Rare surgery spurs greater weight loss, more risks

A less common form of obesity surgery may spur more weight loss than its far more popular cousin, gastric bypass — but at the price of greater long-term risks, researchers reported Tuesday.

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