Jean-Baptiste Biot

Jean-Baptiste Biot was a French physicist, astronomer, and mathematician who co-discovered the Biot–Savart law of magnetostatics with Félix Savart, established the reality of meteorites, made an early balloon flight, and studied the polarization of light.

21 April 1774

Born on the same birth day (21 April): Anthony Quinn • Charles Grodin • Edwin S. Porter • Francesco Maidalchini • Ira Louvin • Jack Taylor (referee) • John McCabe (composer) • Louis de Noailles, 4th Duke of Noailles • Ludovico Carracci • Manuel Blanco Encalada • Marco Antonio Bragadin • Mike Wingfield • Shivaji Satam

Born in the same month (April 1774): Christian Leopold von Buch