Tag Archives: Light

Summer Time

by James Morris

At Saint Sulpice, a magnificent church in Paris, there is a famous gnomon made up of three different parts. Against one of the walls of the church is a tall obelisk. Running down the obelisk and across the floor of the church is a brass line set in white marble. And, in a window opposite the obelisk, there is a small hole that lets in a shaft of light on sunny days.

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