Daniel Bernoulli was an 18th-century Swiss mathematician and physicist, born on February 8, 1700. He is best known for his work in fluid dynamics and for formulating Bernoulli's principle, which describes the behavior of fluid flow. This principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or potential energy. Bernoulli's contributions extended beyond fluid mechanics; he also made significant advancements in probability and statistics. His book, Hydrodynamica, published in 1738, laid the groundwork for modern fluid mechanics and influenced various fields, including engineering and aerodynamics.