Doon Group Of College

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01/03/2018

Let's play and celebrate Holi without any worry
and let it bring out the child in us and enjoy and cherish this colourful festival.
Happy Holi

26/01/2018
01/01/2018

May the spirit of the season of New year fill your heart with serenity and peace. Happy New Year

Happy new year
31/12/2017

Happy new year

16/12/2017
08/10/2017

My the moonlight flood your life with, Happiness and Joy,
Peace and Harmony. Happy Karva Chauth!

29/09/2017

Marie Curie's notebook from 1899 until 1902 containing notes from experiments on radio-active substances.

The 1896 discovery of radioactivity by Henri Becquerel inspired Marie and Pierre Curie to further investigate this phenomenon. They examined many substances and minerals for signs of radioactivity. They found that the mineral pitchblende was more radioactive than uranium and concluded that it must contain other radioactive substances. From it they managed to extract two previously unknown elements, polonium and radium, both more radioactive than uranium.

In 1903, Madame Curie shared the in Physics with her husband Pierre Curie and Antoine Henri Becquerel.

Photo: Wellcome Images Archives & Manuscripts.
(Library reference no. WMS 1978).

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Dehra Dun

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