NASA's experimental X-59 jet breaks sound barrier for 1st time in step toward 'quiet supersonic' technology
NASA and Lockheed Martin’s experimental X-59 aircraft has broken the sound barrier, achieving a speed of Mach 1.1. The feat could set the stage for “quiet” supersonic flight.
The ocean is an important carbon sink that absorbs 20–30% of the total anthropogenic CO2 emissions in the industrial era (1.0–3.0 Pg annually, 1 Pg = 1015 g). Tropical cyclones are among the most devastating weather systems that profoundly disturb…