spherical geometry

If you understand geometry, I think you can understand a lot in science.

When it is new, and also when in its waning stages it is visible in the daytime, the spherical form is very apparent.

We may note that in a few months of heavy weather the stones of such a fall have all been reduced to rudely spherical forms.

These bits are commonly distinctly faceted; they rarely have a spherical form.

Upon these spherical aggregations of the clouds the winds act in extremely varied ways.

Philosophy kept pace with geometry, and those who observed Nature also gloried in abstruse calculations.