Shock wave cannot travel any further upstream and the pressure progressively builds in that region; a high pressure shock wave rapidly forms. Shock waves are not conventional sound waves; a shock wave takes the form of a very sharp change in the gas properties. Shock waves in air are heard as a loud "crack" or "snap" noise. Over longer distances, a shock wave can change from a nonlinear wave into a linear wave, degenerating into a conventional sound wave as it heats the air and loses energy. The sound wave is heard as the familiar "thud" or "thump" of a sonic boom,
Faster Than the Speed of Night 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 in the US, and Double Platinum in