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EntertainmentAppeared with the strange 'Bright Ring' in Moscow's sky
A bright cloud shaped like a ring that appeared in Moscow's sky on Wednesday made many people surprised.Learn how to counter fake money from butterfly wings
Strange optical effects on butterfly wings can help people encrypt information on banknotes or other precious objects to prevent counterfeiting.
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- Why are there no male queen bees?
- The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
- Mystery of dozens of giant circular structures at the bottom of Lake Michigan
- US ship becomes world's largest artificial reef
- Wreckage of mysterious missing bomber found after 80 years
- Surprised to know the identity of the Russian missile debris 'hunter'
- Australia releases chemical composition data of nearly 1 million stars
- NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away
Why are there no male queen bees?
The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
Mystery of dozens of giant circular structures at the bottom of Lake Michigan
US ship becomes world's largest artificial reef
Wreckage of mysterious missing bomber found after 80 years
Surprised to know the identity of the Russian missile debris 'hunter'
Australia releases chemical composition data of nearly 1 million stars
NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away
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