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Since the original Japanese Iron Chef first appeared on the Food Network 15 years ago, how-to cooking shows have gradually been displaced by reality shows that pit chefs against each other.

At least 7,000 health care workers are needed to staff new Ebola treatment centers in Liberia alone. Those doctors, nurses and hygienists must learn how to protect themselves — and how not to panic.

School principal Mike Neubert of South Dakota told elementary students if they collectively ran 200 miles, he would run a marathon. Neubert ran the equivalent of a marathon around the school.

This year's Nobel Prize in physics went to scientists who invented the blue light-emitting diode. Paired with solar power, the energy-efficient LED is bringing affordable light to places off the grid.

The PBS program Daniel Tiger's Neighborhood is bringing the legacy of Fred Rogers to a new generation of children.

A satirical website compiled the cost of property damage if Calvin — of the comic strip "Calvin and Hobbes" — was a real kid. The total: nearly $16,000.

French economist Jean Tirole, 61, works at the Toulouse School of Economics in France. The economics prize completed the 2014 Nobel Prize announcements.

China is attempting to move nomads into permanent settlements, but the transition for many has proven difficult. After apartment living, one family plans to go back to herding.

Students want to cash in on that growing job market. Those high paying jobs are also attracting petroleum engineering professors. So there are fewer professors to teach ballooning classes.

News site Vocativ.com analyzed more than 600 presidential speeches. In general, it says the earliest speeches were written at PhD levels, and that language has become less sophisticated over time.