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EntertainmentThe Netherlands launches an electric 'super submersible' that runs faster than dolphins
The Dutch submarine maker U-Boat Worx has just launched the Super Sub electric motor submersible with a bullet-shaped design and can operate continuously for 8 hours.Battery-powered submarines
A Dutch company has launched its own battery-powered submarine that can dive to a depth of 1,000 meters.
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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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