geodesy

In 1987, the International Astronomical Union and the International Union of Geodesy and Geophysics established the International Earth Rotation and Reference Systems Services to monitor Earth’s rotation and maintain global time.

So we shall put the question otherwise; can geodesy aid us the better to know nature?

And to-day, a century and a half after the victory of the Newtonians, think you geodesy has nothing more to teach us?

Geodesy can therefore weigh them from afar, so to speak, and tell us of their distribution.

We reach what may be called the second heroic period of geodesy.

The theodolites used in geodesy vary in pattern and in size—the horizontal circles ranging from 10 in.