Sonic boom and the "rise time" of the shock which makes the boom seem louder. On most aircraft designs the characteristic distance is about , meaning that below this altitude the sonic boom will be "softer". However, the drag at this altitude or below makes supersonic travel particularly inefficient, which poses a serious problem. The pressure from sonic booms caused by aircraft often are a few pounds per square foot. A vehicle flying at greater altitude will generate lower pressures on the ground, because the shock wave reduces in intensity as it spreads out away from the vehicle, but the sonic booms
Twang Twang Shock-A-Boom Twang Twang Shock-A-Boom Twang Twang Shock-a-Boom is an acoustic three-piece band led by Davíd Garza. The name is derived from the sounds of the guitar, bass, and drums. Twang Twang Shock-a-Boom was described by the Austin Chronicle as “one of the most breathtaking musical projects Austin has ever seen.” . For 10 months, the trio of Davíd Garza, Jeff Haley, and Chris Searles played humorous tunes with the bare-bones setup of guitar, upright bass, and a guitar case standing in for drums. It began when Garza and his music-school friends decided to go busk in the West Mall of Austin,