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
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