It is obvious that the moon and the mathematician use different methods of finding the lunar orbit.


The Nature of the Physical World, Chapter XII (p. 258), The Macmillan Company. 1930


It is obvious that the moon and the mathematician use different methods of finding the lunar orbit.

It is obvious that the moon and the mathematician use different methods of finding the lunar orbit.

It is obvious that the moon and the mathematician use different methods of finding the lunar orbit.

It is obvious that the moon and the mathematician use different methods of finding the lunar orbit.