Emmanuel De LangreEmmanuel de Langre is a Professor of Mechanics in École Polytechnique. He is an Associate Editor of the Journal of Fluids and Structures. He has worked as an engineer in the French nuclear industry. His principal research interests are in fluid-strucure interactions and vibrations of engineering systems, such as heat exchangers and underwater offshore risers but also of natural systems such as crops and trees moving under wind load. Read More Read Less