This book traces the history of the concept of work from its earliest
stages and shows that its further formalization leads to equilibrium
principle and to the principle of virtual works, and so pointing the way
ahead for future research and applications.
The idea that something remains constant in a machine operation is very
old and has been expressed by many mathematicians and philosophers such
as, for instance, Aristotle. Thus, a concept of energy developed.
Another important idea in machine operation is Archimedes' lever
principle.
In modern times the concept of work is analyzed in the context of
applied mechanics mainly in Lazare Carnot mechanics and the mechanics of
the new generation of polytechnical engineers like Navier, Coriolis and
Poncelet. In this context the word "work" is finally adopted. These
engineers are also responsible for the incorporation of the concept of
work into the discipline of economics when they endeavoured to combine
the study of the work of machines and men together.