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 ...

Breaking the Sound Barrier: Yer Doin’ It Wrong Attention, turbojet-heads: Turner Classic Movies airs “The Sound Barrier” at 8 p.m. EST Friday, May 7. The 1952 film, directed by David Lean ...