Humankind was once determined to break the sound barrier, as it was considered the ultimate achievement in speed. But our technology didn't stop there, as we've built experimental vehicles that can ...

Basketball shoes on a gym floor, bicycle brakes in need of a tune-up, or the squeal of tires are everyday examples of squeaking sounds. Such sounds have long been attributed to stick-slip friction, or ...

The X-59 is designed to travel faster than the speed of sound without creating a loud sonic boom. The ultimate goal is to prove that quiet supersonic flight is a viable option for commercial airlines.