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What is the sound barrier, and how is it broken?

The demonstrator aircraft, XB-1, flew 10% faster than the speed of sound and in doing so broke the sound barrier. Boom Supersonic hopes the achievement will pave the way for the development of ...

We’ve tested the 3 best noise-canceling headphones on planes, trains and more

Our electronics writer has been testing headphones for years, and he’s picked the three pairs that offer the best noise-canceling tech.

I’ve tested dozens of headphones this year — these open earbuds are my favorites

I’ve tested earbuds and headphones for years. These open earbuds from Shokz, Soundcore and Bose are some of the best you can ...