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Leif A. Helseth
9,245 followers -
Reduse, Simplify and Deepen
Reduse, Simplify and Deepen

9,245 followers
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"Carl Sagan performs a thought experiment in flat-land, a two-dimensional fictional world, in order for us to better understand our four-dimensional Universe. He also discusses a four-dimensional hyper-cube, the tesseract. This clip is from Carl Sagan's Cosmos episode 10, "The Edge of Forever." "

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"This visualization shows ocean surface currents around the world during the period from June 2005 through December 2007."

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“In all affairs it’s a healthy thing now and then to hang a question mark on the things you have long taken for granted.”

- Bertrand Russell
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"Ronald D. Siegel, Psy.D., assistant clinical professor of psychology at Harvard Medical School and editor of Harvard Health Publication's special health report, Positive Psychology, discusses what it takes to be happy."

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