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  2. Kardashev scale - Wikipedia

    en.wikipedia.org/wiki/Kardashev_scale

    At the Cerro Paranal Observatory, a laser beam is used to create an artificial star to tune the Very Large Telescope (VLT). The search for exoplanets on which extraterrestrial civilizations could be found is one of the many missions of the VLT. The Kardashev scale (Russian: Шкала́ Кардашёва, romanized: Shkalá Kardashova) is a ...

  3. Art of Mesopotamia - Wikipedia

    en.wikipedia.org/wiki/Art_of_Mesopotamia

    Widely considered to be the cradle of civilization, Mesopotamia brought significant cultural developments, including the oldest examples of writing. The art of Mesopotamia rivalled that of Ancient Egypt as the most grand, sophisticated and elaborate in western Eurasia from the 4th millennium BC until the Persian Achaemenid Empire conquered the ...

  4. Ancient Egypt - Wikipedia

    en.wikipedia.org/wiki/Ancient_Egypt

    Ancient Egypt was a civilization of ancient Northeast Africa. It was concentrated along the lower reaches of the Nile River, situated within the contemporary territory of modern-day Egypt. Ancient Egyptian civilization followed prehistoric Egypt and coalesced around 3100 BC (according to conventional Egyptian chronology) [ 1 ] with the ...

  5. History of Western civilization - Wikipedia

    en.wikipedia.org/.../History_of_Western_civilization

    History of Western civilization. The School of Athens, a famous fresco by the Italian Renaissance artist Raphael, with Plato and Aristotle as the central figures in the scene. Western civilization traces its roots back to Europe and the Mediterranean. It is linked to ancient Greece, from which it was carried to Rome, and Medieval Western ...

  6. Ancient Egyptian technology - Wikipedia

    en.wikipedia.org/wiki/Ancient_Egyptian_technology

    Greek technology. Roman technology. Iranian technology. Ancient Egyptian technology describes devices and technologies invented or used in Ancient Egypt. The Egyptians invented and used many simple machines, such as the ramp and the lever, to aid construction processes. They used rope trusses to stiffen the beam of ships.

  7. Silurian hypothesis - Wikipedia

    en.wikipedia.org/wiki/Silurian_hypothesis

    The Silurian hypothesis is a thought experiment, [ 1 ] which assesses modern science's ability to detect evidence of a prior advanced civilization, perhaps several million years ago. The most probable clues for such a civilization could be carbon, radioactive elements or temperature variation. The name "Silurian" derives from the eponymous ...