Buraco negro Book by Gabriel Grayson - Bookswagon UAE
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Buraco negro

Buraco negro


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About the Book

Um buraco negro é uma região no espaço-tempo (espaço em suas quatro dimensões, que são as três dimensões mais o tempo) que tem uma atração gravitacional tão forte que nada - nem mesmo partículas ou ondas de radiação eletromagnética como a luz - podem escapar dela. A relatividade geral prevê que uma massa comprimida de uma certa quantidade pode distorcer o espaço-tempo para formar um buraco negro. A fronteira da região que não pode ser escapada é chamada de horizonte de eventos. Embora cruzar a fronteira do horizonte de eventos tenha enormes efeitos sobre o destino e as condições de qualquer objeto que cruze, nenhuma característica observável dessa região aparece. Um buraco negro funciona como um corpo negro perfeito, porque não reflete nenhuma luz. Além disso, a teoria quântica de campos no espaço-tempo curvo prevê a emissão de radiação Hawking em horizontes de eventos, com o mesmo espectro de um corpo negro com temperatura inversamente proporcional à sua massa. Esta temperatura é da ordem de um bilionésimo de kelvin para buracos negros de massa estelar, o que significa que é impossível observar.


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Product Details
  • ISBN-13: 9798354677689
  • Publisher: Amazon Digital Services LLC - Kdp
  • Publisher Imprint: Independently Published
  • Height: 229 mm
  • No of Pages: 144
  • Spine Width: 8 mm
  • Weight: 254 gr
  • ISBN-10: 8354677680
  • Publisher Date: 25 Sep 2022
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Sub Title: Conceitos de buracos negros
  • Width: 152 mm


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