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EntertainmentOverview of VAR technology is applied in the 2018 World Cup
This is a new technology for the first time used in the World Cup and we will learn more about this technology.Video technology was first used at the World Cup
The referee's video support technology (VAR) will help the matches at the 2018 World Cup more fair and transparent, limiting the referee's mistakes.
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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
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