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Boom Supersonic's XB-1 jet breaks sound barrier 3 times on final test flight (video, photos)
Boom will now shift its attentions toward developing Overture, its supersonic passenger jet.
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Artist creates Route 28 sound barriers that are pleasing to eyes, ears
But that’s the case with Penn­DOT’s Highland Park Interchange Project for which locally based, award-winning artist Brian Peters designed unique sound barrier walls. The wavy design is ...