Quick Facts
Born:
Aug. 23, 1811, Annonay, Fr.
Died:
March 30, 1863, Le Chesnay (aged 51, died on this day)
Notable Works:
“Études cristallographiques”

Auguste Bravais (born Aug. 23, 1811, Annonay, Fr.—died March 30, 1863, Le Chesnay) was a French physicist best remembered for his work on the lattice theory of crystals; Bravais lattices are named for him.

Bravais completed his classical education at the Collège Stanislas, Paris, and received his doctorate from Lyon in 1837. His interest in exploration prompted him to join the Navy, and he began teaching astronomy at the Faculté des Sciences at Lyon in 1841. In 1844 he was elected to the Académie Royal des Sciences, Belles-Lettres et Arts de Lyon. In 1845 he was appointed professor of physics at the École Polytechnique, Paris, and in 1854 was admitted to the geography and navigation section of the Académie des Sciences, Paris.

Bravais was responsible for the revival of interest in the study of the external forms of crystals and their internal structures. After intensive study of lattice properties, he derived in 1848 the 14 possible arrangements of points in space. In Études cristallographiques (1866) he exhaustively analyzed the geometry of molecular polyhedra.

Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
Britannica Quiz
Physics and Natural Law

Numerous other books and articles reflected Bravais’s ceaseless curiosity that resulted in comprehensive studies of such diverse subjects as terrestrial magnetism, the northern lights, meteorology, botanical geography, astronomy, and hydrography.

This article was most recently revised and updated by Encyclopaedia Britannica.
Britannica Chatbot logo

Britannica Chatbot

Chatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.

crystallography, branch of science that deals with discerning the arrangement and bonding of atoms in crystalline solids and with the geometric structure of crystal lattices. Classically, the optical properties of crystals were of value in mineralogy and chemistry for the identification of substances. Modern crystallography is largely based on the analysis of the diffraction of X-rays by crystals acting as optical gratings. Using X-ray crystallography, chemists are able to determine the internal structures and bonding arrangements of minerals and molecules, including the structures of large complex molecules, such as proteins and DNA.

The Editors of Encyclopaedia Britannica This article was most recently revised and updated by John P. Rafferty.
Britannica Chatbot logo

Britannica Chatbot

Chatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.