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EntertainmentThe supersonic plane flies faster than Concorde
The US Air Force's 3,218 km/h XB-70 Valkyrie aircraft inspired the design of later civil supersonic aircraft Concorde and Tupolev Tu-144.Top 5 supersonic aircraft models that attract attention
Long after Concorde was discontinued, commercial companies are now developing new models of supersonic passenger aircraft.
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Can carp live 10 years in a tank without feeding?
Why do Italy and Switzerland have to redraw the border?
Japanese bullet train accident-free for 60 years
The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
World's oldest wine jar contains cremated human bones
America catches strange signal from 1.3 billion light years away from Earth
Two black holes closest to Earth discovered, of a kind never seen before
Solar sails help spacecraft reach Mars in 26 days
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