The speed of sound plays a fundamental role in compressible gas dynamics: it is the speed at which a small amplitude disturbance propagates through a gas. Sound is actually a pressure oscillation, areas of compression and rarefaction passing through a...

The term supersonic is used to define a speed that is over the speed of sound (Mach 1). At a typical temperature like 70 degrees Fahrenheit (21.1 °C), the threshold value required for an object to be traveling at a supersonic speed is approximately 344...

Potential breakthroughs fuel commercial, military interest Talk to people involved in the Quiet Supersonic Platform (QSP) project and you hear some remarkable optimism. Engineers at Northrop Grumman and Lockheed Martin think that they can design a low-boom supersonic aircraft and meet the performance...

SINCE the demise last year of Concorde, moneyed travellers and executives have made do with the ordinary comforts of trans-oceanic sleeper seats. But at the annual confab of the National Business Aviation Association (held, fittingly, in Las Vegas), two groups unveiled intriguing punts on...

Today brings an intriguing development in party promoter Ivy Supersonic’s public feud with Plumm owner Noel Ashman, who Ms. Supersonic claims still owes her $1,000 for her work on a Halloween bash at the 14th Street nightclub. In an apparent effort to scold Mr....

Luke Ridnour had 27 points and nine assists Tuesday night to lead the Seattle SuperSonics to a 102-94 victory over the limping New Orleans Hornets, who lost rookie of the year Chris Paul indefinitely to a sprained ankle in the first quarter.Chris Wilcox added a...