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Daniel Bernoulli was born into a family of

mathemeticians on February 8, 1700. He was the only person

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 of “the

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 the “corpuscles” of the gas as so

minute that there were “practically 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 name...