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Many teachers still rely on this centuries-old calculating device to provide a hands-on approach to math.

Those who use two of the world's most popular websites can easily donate to charities working to stem Ebola's spread in West Africa. The money will help, but aid groups say awareness is important too.

An Iraq war veteran has developed a better artificial leg with a cooling fan. Gary Walters says most prosthesis don't release heat, causing many amputees to stop wearing them.

The number of deaths of children under 5 has dropped by 49 percent since 1990. There are many reasons why, from better vaccines and health workers to "kangaroo mother care."

Dick Humes squinted and sweat as he moved down a row of corn. He sliced through the husk with a metal hook in his right hand, snapped the ear from its…

A national poll released Monday shows many registered voters were reminded of the importance of national parks during the federal government shutdown. Congress did get more of a bruising on perceived responsibility for the park closures, but the president wasn't left unscathed either.

Twenty-nine lawmakers are supposed to come up with a long-term budget deal by mid-December. They meet again Wednesday around a conference table, facing huge hurdles and led by two people who couldn't be more different: Democratic Sen. Patty Murray of Washington state and Republican Rep. Paul Ryan of Wisconsin.

In Tacloban, a city of more than 220,000 people, some aid trucks are being looted as they arrive. Desperate for food, water and other essentials, many people are taking matters into their own hands.

Criminal lawyers increasingly turn to brain science to explain their clients' actions. It's a tactic that's kept defendants out of jail. But neuroscientists say scans can be easily misused or misinterpreted. Now judges must decide whether the evolving science is being used in a sensible way.

The Houston Grand Prix was the scene of a scary crash Sunday, as driver Dario Franchitti's race car went airborne into a catch fence on the last lap of the day's second race. Several spectators were also reportedly injured after debris flew into the stands.