Tag Archives: Albert Einstein

Tachyons

As every sci-fi geek knows, matter may travel faster than the speed of light as long as its mass is imaginary (a multiple of √−1). A so-called tachyon would not overturn special relativity—and it would provide a handy way of resolving any conflicts … Continue reading

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Manifolds, Star Fox, and Self-versus-Other

Branes, D-branes, M-theory, K-theory … news articles about theoretical physics often mention “manifolds”.  Manifolds are also good tools for theoretical psychology and economics. Thinking about manifolds is guaranteed to make you sexy and interesting. Fortunately, these fancy surfaces are already … Continue reading

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Spacetime is Curved

“General relativity can be summed up in two statements: Spacetime is a curved pseudo-Riemannian manifold with a metric of signature . The relationship between matter and the curvature of spacetime is contained in the equation.” —Sean Carroll There you have … Continue reading

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