Angeli examined fluid statics based on Archimedes' principle and Torricelli's experiments.
Yet, one would also have to judge that it was simply too difficult to develop both statics and dynamics, given the then-available tools.
He also studied applications of mechanics and statics to geometric systems.
In astronomy Thabit was one of the first reformers of the Ptolemaic system, and in mechanics he was a founder of statics .
Poisson ended the section on statics with the principle of virtual velocities, and like de Prony he put forward d' Alembert's principle as the ‘general principle’ of dynamics.
The assumption also formed part of Lagrange's aim of reducing dynamics to statics, whereas those of Carnot's persuasion saw statics as a special case of dynamics.
Another is that, as active participants in statics - for example, when we hold up a weight - we definitely feel we are doing something, even though no mechanical work is performed.
At the time of his death he was working on problems in kinematics, having earlier studied statics and in particular the catenary.
Motion is much harder to measure than the weights and distances which concern statics , besides which the causes of motion, which alone interested physicists, were not obtainable through measurements.
He strongly adhered to the principle that more force was required to move a weight than was required to keep it in motion, so dynamics and statics had to be two separate subjects.