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28-May-2020 Thursday
The Tunguska explosion could have been caused by an asteroid that is still orbiting the Sun

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The Tunguska explosion could have been caused by an asteroid that is still orbiting the Sun - My, Nauchpop, Nauchpop, The science, The science, Astronomy, Astronomy, Longpost, Longpost, Tunguska meteorite, Tunguska meteorite, Meteorite, Meteorite

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Astronomy Meteorite The science Nauchpop Tunguska meteorite

24-August-2017 Thursday
Production of phosphoric acid and phosphogypsum. Excursion to the factory.

White Mountain Video Factory The science Уралхим Фосфогипс Фосфорная кислота Chemistry

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