| 21. | We broke the world record and we broke the sound barrier.
|
| 22. | I can't believe the end of the whip is exceeding the sound barrier.
|
| 23. | Chuck Yeager, who broke the sound barrier in the X-1 rocket.
|
| 24. | It appears the Irish people have broken the political sound barrier.
|
| 25. | On Wednesday, Israeli warplanes flew reconnaissance missions over Lebanon, breaking the sound barrier.
|
| 26. | And I cheered when she broke the sound barrier in the old-boys club.
|
| 27. | Whips were the first man-made objects to break the sound barrier.
|
| 28. | Chuck Yeager wore one of these models when he broke the sound barrier.
|
| 29. | It cannot break the sound barrier or duck and weave to avoid attacks.
|
| 30. | Israeli warplanes broke the sound barrier over Beirut Sunday, rattling windows of apartment buildings.
|
