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
Faster Than the Speed of Night one hit "Total Eclipse of the Heart". Faster Than the Speed of Night Faster Than the Speed of Night is the fifth studio album by Welsh singer Bonnie Tyler. It was released first in Europe on 8 April 1983 and later that year in the US through Columbia Records. Tyler had changed musical direction from country music in 1980, and began working with Jim Steinman soon after. Steinman produced the album and wrote its most successful single "Total Eclipse of the Heart". The album reached number one on the UK Albums Chart. It was certified Silver in the UK, Platinum