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EntertainmentInstructions for making simple mist fans, steam fans, and air conditioning fans at home
Join us to learn how to make your own mist fan and how to make a simple steam fan at home to cool down this summer.Does the 'air conditioner' fan really regulate?
In recent times, many types of electric supermarket systems have appeared
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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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