PHYSICS:
Pierre-Gilles de Gennes (1932-2007)
Armand Ajdari
Pierre-Gilles de Gennes, one of the greatest physicists of the 20th century, extended the field of condensed-matter physics toward chemistry, biology, and engineering sciences.
The author is at ESPCI, 10 rue Vauquelin, 75005 Paris, France, and at Saint-Gobain, Les Miroirs, 18 av. d'Alsace, 92096 La Défense Cedex, France. E-mail: armand.ajdari{at}saint-gobain.com