science history historic historical famous important notable well-known figure person personality people personalities man male men art artwork drawing illustration blaise pascal b. pascal pascal french european polymath mathematician physicist inventor author writer catholic philosopher child prodigy study of fluids vacuum pioneer calculator projective geometry probability theory modern economics social science traite du triangle arithmetique treatise on arithmetical triangle binomial coefficients pascal's triangle mathematical probability 1623 1662 17th century colorized enhanced - Alamy