noun (used with a singular verb)
Examples from the Web for hydrostatics
First he glanced at optics; but that did not help him to see his way; then at hydrostatics and hydraulics.
Archimedes had propounded the theory of the lever, and the principles of hydrostatics.Fragments of science, V. 1-2|John Tyndall
The very necessities of its geographical position had forced it to pre-eminence in hydraulics and hydrostatics.History of the United Netherlands, 1600-09, Vol. IV. Complete|John Lothrop Motley
The first discovery made in hydrostatics since the time of Archimedes is due to Stevinus.
We see, therefore, that the caddis worm has not to trouble about hydrostatics when building its scabbard.The Life of the Fly|J. Henri Fabre