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Дата изменения: Fri Jun 8 23:31:38 2007
Дата индексирования: Sat Dec 22 06:13:18 2007
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Поисковые слова: comet
All kinds of death - 1

Ending it all

lecture15 INR --- | --- D 2 Next

Death for a civilisation can arrive in many forms

  1. Civilisations can destroy their environment
    • pollution
    • overuse of natural resources
    • the greenhouse effect and overheating
    • overpopulation
    • annihilation
  2. Cosmic catastrophes - rare, but possible
    • Comet impact
    • Asteroid impact
    • nearby supernova
  3. Universal death - inevitable
    • the Sun's death
    • stellar death
    • universe winds down


The Second Law of Thermodynamics