Sonic boom the ground. For example, the speed of sound at is about , but an aircraft must travel at least (Mach 1.12, where Mach 1 equals the speed of sound) for a boom to be heard on the ground. The composition of the atmosphere is also a factor. Temperature variations, humidity, atmospheric pollution, and winds can all have an effect on how a sonic boom is perceived on the ground. Even the ground itself can influence the sound of a sonic boom. Hard surfaces such as concrete, pavement, and large buildings can cause reflections which may amplify the sound of a
Twang Twang Shock-A-Boom every briefcase zipped up and closed and everyone sat up straight in their chairs. It was over. The band broke up not too soon after this failed audition, citing artistic differences and personality conflicts . David Garza was signed to Lava (Atlantic) Records in 1996. Lava Atlantic is a subsidiary of Warner Music Group. The group’s album, "Me So Twangy", won Best Tape at the Austin Music Awards, 1990 and was described by Peter Blackstock of The Austin American Statesman thusly: "reminded him of outtakes from a very early Beatles recording session." Twang Twang Shock-A-Boom Twang Twang Shock-a-Boom is an