If you visit the Copenhagen City Hall, you’ll see an ornate mechanical clock. By itself ... Not too shabby. The fastest gear rotates at 6 RPM, and the slowest turns once every 25,753 years!
After seeing some of the interesting clock builds we’ve featured recently, [shiura] decided to throw their hat in the ring ...
Getting your Trinity Audio player ready... What senior today does not know the black and white hourglass picture and the ...
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