I was walking along the street in Warsaw this morning and I saw this monument to Copernicus. Notice the orbits inlaid in the pavement. See how the moon has an orbit around the third planet out.
I did not like the backlighting in this picture and I asked a local how long until the sun moved around for better lighting.
"Around here," he told me, " we haven't thought the sun moved since Copernicus' time. It's the earth moving."
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