Lange·vin(länzh-văn′), Paul 1872-1946.
French physicist who pioneered the use of sonar techniques to detect submarines. He also advanced the theory of magnetism and the study of the molecular structure of gases.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.