Tag Archives: Einstein

Gravity – humor, history, and some facts

Hungarian stamp commemorating 100 years of general relativity. Image from philatelicdatabase.com …: “Gravity, where did it come from?” when a four-dimensional pseudo-Riemannian manifold and a Landau–Lifshitz stress-energy tensor love each other very much, they produce a geodesic in curved spacetime. … Continue reading

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Waiting for a muse in a cafe…

The golden age of Prague café society was at the turn of the 19th and 20th centuries, when making an appearance at one of the elegant cafés was simply a social necessity. Surrounded by the aroma of good coffee and … Continue reading

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A smile from space

“You can make out two orange eyes and a white button nose. In the case of this “happy face”, the two eyes are the galaxies SDSSCGB 8842.3 and SDSSCGB 8842.4.” From the ESA website for the Hubble space telescope. The … Continue reading

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