Search results
Results from the WOW.Com Content Network
The sound of a sonic boom depends largely on the distance between the observer and the aircraft shape producing the sonic boom. A sonic boom is usually heard as a deep double "boom" as the aircraft is usually some distance away. The sound is much like that of mortar bombs, commonly used in firework displays. It is a common misconception that ...
The crack of a supersonic bullet passing overhead or the crack of a bullwhip are examples of a sonic boom in miniature. [6] Sonic booms due to large supersonic aircraft can be particularly loud and startling, tend to awaken people, and may cause minor damage to some structures. They led to prohibition of routine supersonic flight over land.
The sonic boom associated with the passage of a supersonic aircraft is a type of sound wave produced by constructive interference. Unlike solitons (another kind of nonlinear wave), the energy and speed of a shock wave alone dissipates relatively quickly with distance.
Sonic and ultrasonic weapons (USW) are weapons of various types that use sound to injure or incapacitate an opponent. Some sonic weapons make a focused beam of sound or of ultrasound ; others produce an area field of sound.
Comparison of Ballistic Missile and Hypersonic Glide Vehicle (C-HGB) Flight Trajectories for the LRHW Program Scramjet-powered hypersonic cruise missile. A hypersonic weapon is a weapon capable of travelling at hypersonic speed, defined as above Mach 5, or above 5 times the speed of sound.
Earlier stealth aircraft (such as the F-117 and B-2) lack afterburners, because the hot exhaust would increase their infrared footprint, and flying faster than the speed of sound would produce an obvious sonic boom, as well as surface heating of the aircraft skin, which also increases the infrared footprint.
Overpressure psi (kPa; bar) Effect on buildings and people within 1 (6.9; 0.069) Window glass shatters; Light injuries from fragments occur; 2 (14; 0.14) Moderate damage to houses (windows and doors blown out and severe damage to roofs)
Police car equipped with an LRAD-500X sonic weapon (Warsaw, Poland, 2011). A directed-energy weapon ( DEW ) is a ranged weapon that damages its target with highly focused energy without a solid projectile, including lasers , microwaves , particle beams , and sound beams.