When traveling near the speed of sound, the plane came up against a "sound barrier"—as though the velocity of sound represented a wall through which a plane could not move. With technological ...

NOVA spoke with him on the eve of the 50th anniversary of the breaking of the sound barrier. NOVA: How early on did the Americans get involved in pursuing high-speed flight? HALLION: The American ...

How do they sound when I really sit down and listen to them, and what does that vacuum tube do? I think it’s best to describe the écoute as ‘indulgent’. They won’t blow you away with a ...

A newly released image shows the sound barrier being broken on February 10 as America’s first civil supersonic jet completed its second flight at speeds exceeding Mach 1. NASA teams on the ...

Written with all of the fierce intelligence and passion for truth that millions have come to expect from Amy Goodman’s reportage, Breaking the Sound Barrier is, in Arianna Huffington’s words ...