Impact.

Advances in dynamics and impact mechanics edited by C.A. Brebbia, G.N. Nurick 2003 Climate change: Science, impacts and policy Jager, Jill 1991 Dynamic impact factors for bridges McLean, David I. 1998 Effect of austempering conditions on the properties of ductile iron Umar Farooq, Muhammad 2007 High speed testing Author not listed 1962 Hypervelocity Gouging Impacts Cinnamon, John D. 2009 Pendulum impact machines Thomas A. Siewert and A. Karl Schmieder, editors 1995 Rain of iron and ice: the very real threat of comet and asteroid bombardment Lewis, John S. 1996 Structural design for dynamic loads [by] Charles H. Norris [and others] 1959