Dolphins Have Names

It turns out that there’s strong evidence to suggest that at least one kind of dolphin sound, studied extensively over the past decade, does function as a kind of referential symbol. Dolphins use distinct “signature whistles” to identify and call to one another.  Each dolphin is thought to invent a unique name for itself as a calf and to keep […]

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Time travel

Sorry, science-fiction fans: Time travel is impossible.  That is the sobering conclusion, anyway, of a Hong Kong-based team of physicists.  They found that the maximum speed of a single photon, the basic unit of light, “obeys the traffic law of the universe,” Agence France-Presse reports.  The photon cannot go faster than the speed of light—186,282 miles per second—and thus provides […]

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Abstinence From Smiling

A British woman has abstained from smiling for the last 40 years in an extreme attempt to ward off wrinkles.  Tess Christian, 50, told the Daily Mail that she adopted a permanent poker face as a child to prevent laughter lines around her mouth, eyes, and forehead. “My dedication has paid off,” she said.  “I don’t have a single line […]

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