Science : NPR
Already, researcher Stuart Russell says, sentry robots in South Korea "can spot and track a human being for a distance of 2 miles — and can very accurately kill that person."
Two professors at the University of Lisbon say they have discovered why the pendulums of clocks set on the same surface will eventually swing together in opposing directions.
The more than 3,000-acre fire in Glacier National Park in Montana is forcing evacuations and road closures. The fire comes at peak tourist season for park area businesses.
SpaceShipTwo broke apart during an October test flight because the co-pilot unlocked a section of the spaceship's tail too early, the National Transportation and Safety Board announced.
In his new book, The Man Who Wasn't There, Anil Ananthaswamy examines the ways people think of themselves — and how those perceptions can be distorted by certain brain conditions.
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