Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about 750 mph ...

During the test flight, it reached an altitude of 35,000ft before accelerating to Mach 1.1 (844mph) - 10% faster than the speed of sound.

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After years of testing and refinement, a pilot flying the aerospace company’s XB-1 scale prototype finally broke the sound barrier during ... s around twice the speed of today’s subsonic ...

Relative humidity is normally expressed as a percentage and at saturation the relative humidity will be very close to 100%. The air can hold more moisture at higher temperatures, hence the relative ...

When iOS 18 launched last fall, we got an all-new Calculator app. It’s got some great features, including Math Notes, which lets you scribble down calculations to solve, and unit conversions ...

From Dolby Atmos virtualization to voice assistant compatibility, you’ll be hard-pressed to find any soundbar without a list of cool capabilities (other than making your TV sound better).

One of my gripes with "The Martian" movie was the depiction of the winds on Mars. The lower air density means that the sort ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Executive Editor David ...

You'll also need to weigh up factors like customer service, speed and reliability. We rate each of these, and attribute an overall customer score to each broadband provider, in our regular survey.

The cannabidiol (CBD) world can feel huge and complicated, but products like CBD gummies make it more approachable for some folks. CBD gummies are easy to dose, portable, and discreet. They also ...