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inaz
@inaz
Polish mathematician and astronomer, born in 1473 AD, is considered among the researchers who realized the inefficiency of Ptolemy's model and developed the heliocentric model; In this system, contrary to previous ideas, other planets, including the Earth, are rotating around the Sun. He wrote the book "On the Revolutions of the Heavenly Spheres" before his death(Nicolas Copernicus)
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Atef
@atef
Scientists are the scientific and spiritual assets of the world who have spent their lives in the service of humanity. 84 $DEGEN for you my friend.
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celine
@victor88
84 $DEGEN Good luck my dear
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