During Apollo lunar missions, had the command module pilot have died while the other two astronauts were on the Moon, or had only one of the two lunar walkers died, did NASA have a procedure for su...

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https://sites.google.com/view/sources-truelimitsofhumanity/

The original Limits of Humanity: https://www.youtub…

Richard D. Wolff is Professor of Economics Emeritus, University of Massachusetts, Amherst where he taught economics from 1973 to 2008. He is currently a Visiting Professor in the Graduate Program in International Affairs of the New School University in New…

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https://github.com/psenough/teach_yourself_demoscene_in_14_days
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It’s fair to say that black holes may be the scariest objects in the universe. Happily for us, the nearest is probably many light-years away. Unless of course…

A podcast about all things carbon pricing

Quantum entanglement really is "spooky action at a distance."

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Quantum mechanics forbids us from measuring the universe beyond a certain level of precision. But that doesn’t stop us from trying. And in some cases succeeding…

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Could it be that the universe does not expand but we shrink instead? What does it mean that the universe expands anyway? And if it does, what does it expand into? In this…

About Likelihood Ratios, also sometimes called Bayes Factors*.
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Turbulent fluid dynamics are literally all around us. This video describes the fundamental characteristics of turbulence with several examples from nature and from engineering. We discuss how turbulent fluids are unsteady, three-dimensional, mixing, and…

Instructors: Philip Greenspun, Tina Srivastava View the complete course: https://ocw.mit.edu/16-687IAP19 This recording is a three-day workshop of the MIT 20...

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Correction…

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How many times can I half the distance between my hands? Assume perfect coordination and the ability to localize my palms to the quantum level. 15 halvings gets…

Quantum computers aren’t the next generation of supercomputers—they’re something else entirely. Before we can even begin to talk about their potential applications, we need to understand the fundamental physics that drives the theory of quantum computing.…

Microchips are one of the most complicated objects humanity has created, packing billions of transistors into a chip only a few centimeters across. These transistors keep getting smaller and more efficient, and the current process to make chips is already…