"Timescape" finds words in the news associated with Sept. 11, and weights them according to prominence in a story — not just how often they appear. Gaurav Bradoo hide caption

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An Algorithm Is A Curator At The Sept. 11 Museum

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States may have their own higher wage laws, but the federal minimum wage for tipped workers is $2.13 an hour. AP hide caption

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For Tipped Workers, A Different Minimum Wage Battle

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(Left) Mayan artisans from the Yucatan region hand-embroidered an armadillo onto this linen dress from Carla Fernández's Mayalands collection. (Right) This Fernandez dress is a traditional rebozo shape which honors the square root design of ancient patterns. Ramiro Chaves/Courtesy Isabella Stewart Gardner Museum hide caption

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A Modern Twist On Mexican Tradition Hits The Runway

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Nineteen-year-old Bosnian Serb Gavrilo Princip fired the shots that killed the heir to the Austro-Hungarian empire, Archduke Franz Ferdinand, and his wife, Sophie, during a visit to Sarajevo on June 28, 1914. Depending on whom you ask, he's either a hero or a terrorist. Historical Archives Sarajevo/AP hide caption

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The Shifting Legacy Of The Man Who Shot Franz Ferdinand

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A 6-foot-long electric eel is basically a 6-inch fish attached to a 5-1/2-foot cattle prod, researchers say. The long tail is packed with special cells that pump electricity without shocking the fish. Mark Newman/Getty Images/Lonely Planet Image hide caption

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A Shocking Fish Tale Surprises Evolutionary Biologists

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Flooding across the Upper Midwest, including Iowa, over the last couple weeks has soaked homes and fields and left local governments scrambling. Dirk Lammers/AP hide caption

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Rainstorms Pummel Upper Midwest, Drowning Resources

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The Armatix smart gun is implanted with an electronic chip that allows it to be fired only if the shooter is wearing a watch that communicates with it through a radio signal. It is not sold in the U.S. Michael Dalder/Reuters/Landov hide caption

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A New Jersey Law That's Kept Smart Guns Off Shelves Nationwide

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While life has changed significantly for American men in the past half-century, notions of masculinity remain tied to those that may have been passed down from this father to the son on his shoulders. Evans/Three Lions/Getty Images hide caption

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The New American Man Doesn't Look Like His Father

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Since the water wheel began churning in May, it has removed 40 tons of trash from Baltimore's Inner Harbor. Clearwater Mills LLC hide caption

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Baltimore's Water Wheel Keeps On Turning, Pulling In Tons Of Trash

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Generic hydrocodone plus acetaminophen pills seen in a pharmacy in Montpelier, Vt., in 2013. Toby Talbot/AP hide caption

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Americans Weigh Addiction Risk When Taking Painkillers

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A mountain lion known as P-22 was recaptured in March by National Park Service biologists and treated for mange. Wildlife officials believe the cougar's ill health is the result of exposure to rat poison. National Park Service hide caption

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LA Mountain Lion A Poster Cat For California's Rat Poison Problem

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Romero is detained at a county park near McAllen, Texas, after wading across the Rio Grande. He says he left Central America to avoid conscription by street gangs and to join his family in the U.S. John Burnett/NPR hide caption

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From A Stream To A Flood: Migrant Kids Overwhelm U.S. Border Agents

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While cities are still competing for the not yet built Lucas Cultural Arts Museum, parts of the collection are already on display. The "Star Wars Identities" traveling exhibition, currently at the Cite du Cinema in Saint-Denis, France, features 200 objects from George Lucas' collection — including the costumes of Chewbacca, Han Solo and Princess Leia Organa. Patrick Kovarik/AFP/Getty Images hide caption

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Never Tell Them The Odds: Cities Vie To Host 'Star Wars' Collection

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DNA from these crab plovers, collected in Djibouti, Africa, should help scientists figure out how the unusual species fits into the family tree, says the Smithsonian's Helen James. Maggie Starbard/NPR hide caption

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Is Collecting Animals For Science A Noble Mission Or A Threat?

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Iraqi Shiite tribesmen show their enthusiasm Tuesday for joining Iraqi security forces in the fight against Islamist militants who have taken over several northern Iraqi cities. Haidar Hamdani/AFP/Getty Images hide caption

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What, Exactly, Are U.S. Interests In Iraq's Turmoil?

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