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• itsjune (25)in #biography • 8 years ago

  Cardano

  Cardano, his full name Girolamo Cardano (1501-1576) is an Italian mathematician and physicist. In 1545 he published the book "Ars Magna." In the book he describes how to solve…

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• itsjune (25)in #phobia • 8 years ago

  Triskaideka-phobia

  Triskaideka-phobia is fears at number 13. Since centuries ago, number 13 was considered to be negative in thecommunity's confidence. People are reluctant to invite 13 guests in a…

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