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POPSBlack Hole created in US lab more: Professor Zhang and colleagues are experts in metamaterials and their latest creation is the most impressive yet: modeling black holes by taking "analogy" out of writing and into actual hard science. By designing a metamaterial whose reaction to light looks the same as another phenomena, you can effectively examine that phenomena. This is because "looks like" isn't based on color, or shape, but on having exactly the same equations defining its motion - so that it no longer matters if it's because of metamaterials reaction to light or general relativity's to matter. By setting up this "optical-mechanical analogy" you can study an all-consuming gravitational crusher in a simple chip of material.
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POPSWhen ‘What Animals Do’ Doesn’t Seem to Cover It Mr. Levitis asked the professor for the full definition of a behavior. She referred him to their textbook, with its promising title, “Animal Behavior.” To his surprise, neither that textbook nor any other reference he consulted bothered to spell it out. “It was assumed that everyone knew what the word meant,” said Mr. Levitis, who is completing his doctorate at Berkeley. Mr. Levitis decided to ask the people who should know best: working behavioral biologists. The provocative and crisply written results of his quest, carried out with his colleagues, William Lidicker Jr. and Glenn Freund, appear in the current issue of the journal Animal Behaviour. Among the highlights of the report: biologists don’t agree with one another on what a behavior is; biologists don’t agree with themselves on what a behavior is;
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POPSHarry Patch, Last WW1 Link Dies at 111: war is organised murder War is organised murder. (And a spectator sport for fiends). <<<I hope that is not the end of him. His voice and body may have died, but his words on war should live on, resonating strongly, nearly a century after those Flanders cannon were finally silenced. It would be the best legacy for Harry and his generation. >>> (conclusion of article by last journalist to interview Private Patch).
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POPSGIANT CAVE PICTURES: World's Biggest Found in Vietnam Vietnam's Son Doong cave, the largest single cave passage yet found. First explored earlier this year by a joint British-Vietnamese team, the cave measures at least 262-by-262 feet (80-by-80 meters) in most places and is at least 2.8 miles (4.5 kilometers) long.
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