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Unnisvee sadi khatam hote hote bahut si nayi discoveries huin. Unmein se ek thee N-rays. Duniya ki has cheez se N-rays nikalti malum hoti theen. Aur in N-rays ki discovery ki kahani se hamein ek bahut zabardast cheez seekhne ko milti hai!
End of 19th century was an exciting time for science, with a lot of new discoveries. One of these discoveries were N-rays. Everything in the world emitted N-rays. We have an important lesson to learn from the story of this exciting discovery.
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