Daniel Bernoulli was born into a family of.
in his family to make an impressive mark on physics.
Bernoulli became a Swiss physicist and mathmatician who made.
enourmous contributions to the world of physics. He .
uncovered many significant phenomena in hydrodynamics, and.
in 1738, published his most famous work, Hydrodynamica,.
which was a study of equilibrium, pressure, and velocity of.
fluids. He proved that as the velocity of fluid flow.
increases, its pressure decreases. Bernoulli's principle.
was an early formulation of the subsequent idea ofthe.
conservation of energy?.
Bernoulli's Hydrodynamica was also the first attemt to.
explainof the behavior of gasses with changing pressure and.
temperature. This was the beginning of the kinetic theory of.
gasses. His gas model has been revived and transformed into.
a powerful theory regarding the thermal and mechanical.
properties of gases using the atomic hypothesis.
Bernoulli thought of thecorpuscles? of the gas as so.
minute that there werepractically an infinite number?.
under ordinary conditions, even in a small container. In.
their rapid motion, these corpuscles collide with each other.
and also with the rigid walls of the closed vessel. The.
collisions, however, can be assumed to be perfectly elastic;.
therefore, the kinetic energy of the particles is conserved.
and the motion can continue undiminished. Therefore, the.
pressure which the gas is expected to exert against all.
sides of the container is caused by the incessant impact of.
millions of high speed particles; hence the nameimpact.
theory? of gas pressure.
Imagine a gas filled cylindrical container with the top.
end that is able to slide up and down, in and out like a.
piston. If the volume is slowly decreased, the corpuscles.
are more crowded in the progressively smaller space and the.
number of collisions per second with the walls would be.
larger (i.e., the pressure should become greater, as.
observed). Bernoulli even calculated the magnitude of this.