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DescriptionEinsteinLeiden4.jpg
English: Diagram of gravitational lensing (deflection of light by an intervening mass) with formula of Einstein on a wall of Museum Boerhaave, Leiden (the Netherlands). Painted by Stichting Tegenbeeld. . The line sketched is in fact a Morse code.
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Einstein (gravitational) field equations including the cosmological constant by Albert Einstein from his theory of general relativity (Stephen Weinberg, Gravitation and cosmology, New York, 1972 p. 155); painting by Jan-Willem Bruins (TegenBeeld); photograph by Vysotsky
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Gravitationslinseneffekt und Einsteinsche Feldgleichung auf einer Wand des Museums Boerhaave, Leiden