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U.S. Dollar Hits A Four-Year High Against Japan's Yen

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Japan's currency, the yen, is falling like crazy against the U.S. dollar — just the way the central bank there planned. Japan's economy has been stagnant for nearly two decades, and a weak yen makes Japan more attractive to tourists and foreign investors.

A Star-Crossed 'Scientific Fact': The Story Of Vulcan, Planet That Never Was

For decades, astronomers believed there was another planet in our solar system, tucked just out of sight. Then Albert Einstein figured out it wasn't there. Author Thomas Levenson explains.

Internet Food Culture Gives Rise To New 'Eatymology'

Internet food culture has brought us new words for nearly every gastronomical condition. The author of "Eatymology," parodist Josh Friedland, discusses "brogurt" with NPR's Rachel Martin.

2 Degrees In Paris: The Global Warming Set To Dominate Climate Conversation

As world leaders gather in Paris to talk about climate change, one phrase that will dominate conversations is "two degrees." Global leaders will discuss how to prevent global temperatures from warming by more than two degrees since the industrial revolution.

What Is Li-Fi And When Will You Use It To Download Everything Faster?

Li-Fi is a lot like Wi-Fi, but it uses light to transmit data. NPR's Scott Simon speaks to the man who invented the faster alternative: Harald Haas.

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