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“We have seen juveniles occasionally carrying sticks for many years, and because they sometimes treated them rather like dolls, we wanted to know if in general this behavior tended to represent something like playing with dolls,” said Professor Richard W. Wrangham.

David J. Malan (right), lecturer on computer science, speaks with students Max Sabor '13 (from left) and Arun Viswanath '13 at the CS 50 fair. Photo by Rose Lincoln/Harvard Staff Photographer

The NextWindow 1900 Series Touch Screen installed on the HP TouchSmart All-In-One PC turns it into a giant touch-screen tablet.

When it comes to mobile phone carriers, AT&T is the worst, according to Consumer Reports. The company examined the overall value of service, customer support, voice and data service quality to make its recommendation. In every category, AT&T placed behind the competition.

Ten EU nations including the UK have signed up to develop an offshore wind energy supergrid linking up renewable resources in the North Sea.

The California High-Speed Rail Authority Board voted on December 2 to begin construction in the Central Valley of a new high-speed rail corridor linking Los Angeles and the San Francisco Bay Area. The decision to begin the 65-mile stretch followed a mandate from the Federal Railroad Administration that all federal funding awarded to the project so far must be dedicated to a single portion of the project in the Central Valley.

Cosmologists have come up with a new way to solve their problems. They are inviting scientists, including those from totally unrelated fields, to participate in a grand competition. The idea is to spur outside interest in one of cosmology's trickiest problems -- measuring the invisible dark matter and dark energy that permeate our universe.

The Large Binocular Telescope Interferometer has taken its first images of the star Beta Peg in the constellation Pictor -- an encouraging start for an instrument designed to probe the cosmic neighborhoods where Earth-like planets could exist.

Recent college grads who work for NASA's Jet Propulsion Laboratory, Pasadena, Calif., successfully launched a sounding rocket 120 kilometers (75 miles) above Earth's surface on Monday, Dec. 6, from the U.S. Army's White Sands Missile Range in New Mexico.

Recent college grads who work for NASA's Jet Propulsion Laboratory, Pasadena, Calif., successfully launched a sounding rocket 120 kilometers (75 miles) above Earth's surface on Monday, Dec. 6, from the U.S. Army's White Sands Missile Range in New Mexico.