Daniel Bernoulli (1700–1782) was a Swiss mathematician and physicist, one of several prominent mathematicians of the Bernoulli family from Basel. He is particularly remembered for his applications of mathematics to mechanics, especially fluid mechanics, and for his pioneering work in probability and statistics. His name is commemorated in Bernoulli's principle, a particular example of the conservation of energy, and which describes the mathematics of the mechanism underlying the operation of two important technologies of the 20th century: the carburetor and the airplane wing. This oil-on-canvas portrait of Bernoulli, painted by an unknown artist, now hangs in the Basel Historical Museum.Painting credit: unknown