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  2. Zeitpyramide - Wikipedia

    en.wikipedia.org/wiki/Zeitpyramide

    The completed pyramid will have taken just shy of a decade less to build than Wemding's age at the time that the first block was laid. The pyramid, when completed in the year 3183 , is scheduled to consist of 120 stone or concrete blocks, each measuring 1.2 m (3.9 ft) long, 1.2 m (3.9 ft) wide and 1.8 m (5.9 ft) tall.

  3. Giza pyramid complex - Wikipedia

    en.wikipedia.org/wiki/Giza_pyramid_complex

    The Giza pyramid complex (also called the Giza necropolis) in Egypt is home to the Great Pyramid, the Pyramid of Khafre, and the Pyramid of Menkaure, along with their associated pyramid complexes and the Great Sphinx. All were built during the Fourth Dynasty of the Old Kingdom of ancient Egypt, between c. 2600 – c. 2500 BC. The site also ...

  4. History of timekeeping devices in Egypt - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping...

    Shadow clocks were modified sundials that allowed for greater precision in determining the time of day, and were first used around 1500 BCE. [1] Their major innovation was a modified, more precise gnomon that allowed for the division of night time into 50 parts, with an additional two "twilight hours" in the morning and evening. The shadow ...

  5. Great Pyramid of Giza - Wikipedia

    en.wikipedia.org/wiki/Great_Pyramid_of_Giza

    The Great Pyramid of Giza [a] is the largest Egyptian pyramid.It served as the tomb of pharaoh Khufu, who ruled during the Fourth Dynasty of the Old Kingdom.Built c. 2600 BC, [3] over a period of about 26 years, [4] the pyramid is the oldest of the Seven Wonders of the Ancient World, and the only wonder that has remained largely intact.

  6. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    The Doomsday Clock is a symbol that represents the estimated likelihood of a human-made global catastrophe, in the opinion of the members of the Bulletin of the Atomic Scientists. [1] Maintained since 1947, the Clock is a metaphor, not a prediction, for threats to humanity from unchecked scientific and technological advances. That is, the time ...

  7. Ancient Egyptian technology - Wikipedia

    en.wikipedia.org/wiki/Ancient_Egyptian_technology

    The Red Pyramid (c.26th century BC), named for the light crimson hue of its exposed granite surfaces, is the third largest of Egyptian pyramids. Menkaure's Pyramid, likely dating to the same era, was constructed of limestone and granite blocks. The Great Pyramid of Giza (c. 2580 BC) contains a sarcophagus fashioned of red Aswan granite.

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