"Supersonic" refers to speeds that exceed the speed of sound, which is approximately 343 meters per second (1,125 feet per second) at sea level. When an object travels at supersonic speeds, it creates shock waves, resulting in a phenomenon known as a sonic boom. This effect can be heard as a loud noise when the object passes by. Aircraft like the Concorde and military jets often achieve supersonic speeds. These vehicles are designed with special shapes and materials to handle the intense pressure and heat generated at such high velocities. Supersonic travel allows for faster transportation, significantly reducing travel times over long distances.