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Photos: A soaring celebration for Chuck Yeager 70 years after he broke the sound barrier – San Bernardino Sun
APS Physics - On October 14, 1947, Chuck Yeager and the X-1 achieved 20 seconds of supersonic flight. The resulting change in pressure sounded like an explosion reverberating across the California desert.
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TV documentary brings to life moment Chuck Yeager broke the sound barrier in 1947 | Daily Mail Online
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