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EntertainmentDecoding Promethium: The mysterious man-made element from the Manhattan Project
The chemical element Promethium is one of the most difficult elements to study in the scientific world due to its high radioactivity and instability.The element has a half-life of 1 billion times the life of the universe
A series of stars have long since disappeared, but the bismuth element will still exist and continue to decay.
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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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