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Tech toy buys for Valentine's Day

10 Feb 2012

Tech toy buys for Valentine's Day

Laser radar spots quake changes

10 Feb 2012

An earthquake fault zone in Mexico is imaged with unprecedented precision, thanks to improvements in Light Detection and Ranging - laser radar.

Best-reviewed movies of Dwayne 'The Rock' Johnson

10 Feb 2012

In collaboration with Rotten Tomatoes and its parent company, Flixster, The Chronicle presents the critical consensus of Dwayne "The Rock" Johnson's films. His latest film, "Journey 2: The Mysterious Island" is at Bay...