In anticipation of the first flights of its supersonic X-59 Quiet SuperSonic Technology (QueSST) X-plane, NASA recently tested a microphone that's 30 miles (48 km) long. Spread out on the Mojave ...

The position and the strength of sound sources radiated by an aircraft model in the wind tunnel can be measured with a microphone array. By means of a large number of microphones which are usually ...

An outstanding sporty design and superlative performance together with favorable passenger comfort and high efficiency are fundamentals considerations at all times for a car manufacturer like Porsche.