The Concorde became the premiere transport across the Atlantic in part because it was precluded from flying over populated areas due to the sonic boom it created on takeoff. A new two-wing design, however, may hold the secret to silently breaking the sound barrier. Guile does not approve.
As a plane moves through the air, it stacks up air pressure in front of the plane and creates a vacuum in its wake. When the plane hits super sonic speeds—actually travelling faster that the sound wave it’s creating—the plane will drag and compress the leading and trailing pressure waves together to form a single big shock wave moving at the speed of sound. The wave from this hits the ground is what’s considered the sonic boom.
via Gizmodo
