Example Sentences

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Calculating the epicyclic theory of the moon with epicyclic pin-and-slot gears in this subtle and indirect way was an extraordinary conception by the ancient Greeks.

From Scientific American • Dec. 14, 2021

Wright showed that the epicyclic theories could be translated into epicyclic gear trains with pin-and-slot mechanisms to display the planets’ variable motions.

From Scientific American • Dec. 14, 2021

I figured out how the mechanism calculated the epicyclic theory by building on a remarkable observation by Wright.

From Scientific American • Dec. 14, 2021

The ancient Greeks did not know about elliptical orbits, but they explained the moon’s subtle motion by combining two circular motions in what is called an epicyclic theory.

From Scientific American • Dec. 14, 2021

In both classes, the action involves the use of some sort of epicyclic train, since the motions to be explained are both orbital and axial.

From Scientific American Supplement, No. 447, July 26, 1884 by Various