These Time-Warp Photos Show Six Cities In the Past and Present

Cities change: skyscrapers go up, row houses are torn down, neighborhoods gentrify, earthquakes destroy. Vintage photographs of cities can be fascinating in and of themselves, but the familiar unfamiliarity of these time-warped photographs are especially intriguing. » 4/01/14 9:00am 4/01/14 9:00am

Popular Mechanics QuakeTracker: Tectonic Tracker

I've lived in California all my life. While I shrug off any earthqaukes below a 5.0, I know that the "Big One" is coming. That's what they've been telling me all my life. The "Big One" is coming and we're all doomed. To feed my paranoia of falling into the Pacific Ocean, Popular Mechanics has an app to track earthquakes.… » 1/02/12 6:00pm 1/02/12 6:00pm

Watch Washington Monument Shaking Like Beyonce's Monumental Buttocks

The National Park Service has released a video that shows how the top of the Washington Monument looked from the inside during the August 23 earthquake. Obviously, there was a lot of shaking and people running around. » 9/27/11 9:30am 9/27/11 9:30am