In classical gas dynamics, a shock wave is a sharp, stepwise increase of density, pressure, and temperature that propagates at a supersonic speed with respect to the fluid ahead of it while remaining subsonic with respect to the fluid behind it. The...

A shock wave is essentially a surface of discontinuity propagating supersonically through a medium. Density, pressure, and temperature are unequal on the different sides of the wave front, clearly distinguishing between the shocked and unshocked...

A shock wave (or simply "shock") is a type of propagating disturbance. Like an ordinary wave, it carries energy and can propagate through a medium (solid, liquid or gas) or in some cases in the absence of a physical medium, through a field such as the...

SHOCK WAVES Questions continue to follow evolving treatment By BENEDICT CAREY Los Angeles Times Monday, December 8, 2003 The electrical current throbs from one side of the skull to the other, scrambling circuits along the way, inducing a brief seizure....

Only one has the smarts-and guts to save the cruise ship from rocky ruin. Can Dirk Pitt do it? Dirk Pitt is a man of action. A graduate of the Air Force Academy, son of a United States Senator, and special projects director...

The Russian military has successfully tested what it described as the world's most powerful non-nuclear air-delivered bomb, Russia's state television reported Tuesday.It was the latest show of Russia's military muscle amid chilly relations with the United States.Channel One television said the new weapon, nicknamed the...

An undercover officer who pinned an innocent Brazilian man to his subway seat as he was shot by police told a British court Monday that he was close enough to the victim to feel the shock wave from a fellow officer's gun.The surveillance officer, code...