Definition fission track dating

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The Reformation, the Renaissance, and the scientific period of the 17th century can hardly be contemplated without printed books.Nicholas Copernicus - Polish astronomer; regarded the founder of modern astronomy. He studied mathematics and optics at Cracow, then canon law at Bologna, before becoming canon of Frombork.The work had a hostile reception when it was published (1543), as it challenged the ancient teaching of the Earth as the centre of the universe.

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Democritus of Abdera - Greek philosopher; pupil of Leucippus; developed atomic theory; elaborated idea that matter consisted of atoms having physical size and shape which constantly moved in a void and interacted in different ways; Greek word atoma means indivisible.

He printed the 42-line Gutenberg Bible (c.1455) but in the end he lost a suit from one of his creditors, who confiscated the type for the Bible. Aided by Konrad Humery, he was able to set up another press, but little is known of his work thereafter.

The impact of printing was enormous - it led to an almost instant mass production of books and truly initiated the information age.

The 12-chapter treatise included 292 woodcult illustrations carfully executed by Blasius Weffring.

Agricola also wrote a number of works on medicine, geology, mineralogy, politics, and economics.

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