Tag Archives: Hendrik Lorentz

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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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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