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James Randi: This Cruel Farce Has To Stop
James Randi Educational Foundation
New
The latest blog posts to take off on Hacker News. 2,419 posts.
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At peak, Spain gets 53% of its energy from wind
Ok, not all the time, but last weekend at 5:50am on Sunday morning (8th Nov) Spain set a new record, hitting 53.7% of its energy requirements being supplied by wind energy. As you can see from the graph above, the amount of electricity being supplied by wind, the light green portion of the graph, doesn’t […]
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Why aeroplane wings aren't dimpled like golf balls
Before explaining the purpose of dimples, we first need to understand the aerodynamic properties of a sphere. Let us start by looking at a smooth sphere without any dimples, like a ping-pong ball. If we lived in an ideal world without any friction, the air flowing around a smooth sphere would behave like that shown in…
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For a Quick Exit, Just Block the Fire Door
Learn about public engagement activities from the American Physical Society
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TED 2009: How to Grow Your Own Fresh Air
With only three varieties of plants, we can “grow our own fresh air” indoors, to keep us healthy. Learn more about these plants.
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Flickr reverse engineers the shapes of continents, countries, cities, and neighborhoods.
Almost ninety million, as I write this, and the numbers keep growing especially as nearly every new smart phone released to market has not only a camera but also the ability to capture location information with it.
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The Fourth Quadrant: a Map of the Limits of Statistics (by Nassim Nicholas Taleb)
Statistical and applied probabilistic knowledge is the core of knowledge; statistics is what tells you if something is true, false, or merely anecdotal; it is the "logic of science"; it is the instrument of risk-taking; it is the applied tools of epistemology; you can't be a modern intellectual and not think…
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