In addition to normal flight, helicopters can also hover in the air for operations, which is also a unique flight state that distinguishes helicopters from…

　　”Welcome to Kosovo! Go over there first to buy vehicle insurance.” The policeman at the checkpoint said to me after looking at my passport and…

　　On January 7, 2023, Xinhua News Agency reported that the Nuclear Fusion Science Team of the Institute of Plasma Physics, Hefei Institute of Physical Science,…

　　The love and hatred in the past were only for a moment, and if it was allowed to cook with fire, it would be a…

Some time ago, many people were sick. After the illness, the body felt very weak. Therefore, they tried their best to give the body “a…

　　In his 2023 New Year’s speech, British Prime Minister Sunak admitted that the past year has been “difficult” for the UK, and that these problems…

　　 Bats have super navigation ability. How do they fly dozens of kilometers in a few hours to find food and then return to the…

　　Why is memory often unreliable? 　　The brain and body change so much over a lifetime, but like the hands of a clock, it can be…

　　In 2017, Serbia became the first European country to fully exempt China from visas. Since then, many Chinese tourists have come to this small Balkan…

　　The recently concluded World Cup has brought unprecedented attention to Qatar. As the capital of the Gulf state, Doha is known for its natural gas…