first detailed computer calculation of a black hole’s appearance

luminet-image

by JEAN-PIERRE LUMINET

In 1978 at the Paris Observatory, Jean-Pierre Luminet became the first to make a detailed computer calculation of a black hole’s appearance. He did so, he told me, by programming a (by then already obsolete) 1960s IBM 7040 computer, using punch cards…Because Luminet had no way to print out the resulting image or visualize it on a screen, he used the data to draw an image by hand, putting individual dots of India ink onto a photographic negative.

via @(((Castelvecchi)))

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