the sound barrier may have broken for the first time by dinosaurs 150 million years ago.
the sound barrier may have broken for the first time by dinosaurs 150 million years ago.
when may the sound barrier have broken for the first time by dinosaurs?
150 million years ago
the sound barrier may have been first breached by living beings some 150 million years ago. some paleobiologists report that, based on computer models of their biomechanical capabilities, certain long-tailed dinosaurs such as "brontosaurus", "apatosaurus", and "diplodocus" may have been able to flick their tails at supersonic speeds, creating a cracking sound. this finding is theoretical and disputed by others in the field.









































meteors entering the earth's atmosphere usually, if not always, descend faster than sound.









































section::::history.:early problems.
sound barrier
the sound barrier









































the sound barrier (known in the united states, as breaking through the sound barrier and breaking the sound barrier) is a 1952 british aviation film directed by david lean. it is a fictional story about attempts by aircraft designers and test pilots to break the sound barrier. it was david lean's third and final film with his wife ann todd, but it was his first for alexander korda's london films, following the break-up of cineguild. "the sound barrier" stars ralph richardson, ann todd, and nigel patrick.
the sound barrier