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The sky goddess Nut and human figures representing stars and constellations from the star chart in the tomb of Ramses VI. Egyptian astronomy started in prehistoric times, in the Predynastic Period. In the 5th millennium BCE, the stone circles at Nabta Playa may have made use of astronomical alignments.
Ink: Ink was used in Ancient Egypt for writing and drawing on papyrus from at least the 26th century BC. [134] Siphon: Ancient Egyptian reliefs from 1500 BC depict siphons used to extract liquids from large storage jars. [149][150] Merkhet: The merkhet was an ancient surveying and timekeeping instrument.
Ancient Egyptian metal tool kit is well described and it consisted of metal blades of chisels, adzes, axes, saws and drills, used for the work on various types of wood and stones. [18] Also, the ancient Egyptians were apparently using core drills in stonework at least as long ago as the Fourth Dynasty , probably made of copper or arsenical ...
Babylonian astronomy was "the first and highly successful attempt at giving a refined mathematical description of astronomical phenomena." [2] According to the historian Asger Aaboe, "all subsequent varieties of scientific astronomy, in the Hellenistic world, in India, in Islam, and in the West—if not indeed all subsequent endeavour in the exact sciences—depend upon Babylonian astronomy in ...
The Ancient Greeks developed astronomy, which they treated as a branch of mathematics, to a highly sophisticated level. The first geometrical, three-dimensional models to explain the apparent motion of the planets were developed in the 4th century BC by Eudoxus of Cnidus and Callippus of Cyzicus.
Abu al-Hasan 'Ali ibn Abi al-Said 'Abd al-Rahman ibn Ahmad ibn Yunus ibn Abd al-'Ala al-Sadafi al-Misri (Egyptian Arabic: ابن يونس; c. 950 – 1009) was an important Arab Egyptian astronomer and mathematician, [1] [2] [3] whose works are noted for being ahead of their time, having been based on meticulous calculations and attention to detail.
Decan. 'Diagonal star table' from the late 11th Dynasty coffin lid; found at Asyut, Egypt. Roemer- und Pelizaeus-Museum Hildesheim. The decans (/ ˈdɛkənz /; Egyptian bꜣktw or baktiu, " [those] connected with work" [1]) are 36 groups of stars (small constellations) used in the ancient Egyptian astronomy to conveniently divide the 360 degree ...
Ancient Egyptian sundial (c. 1500 BC), from the Valley of the Kings, used for measuring work hour. Daytime divided into 12 parts. The ancient Egyptians were one of the first cultures to widely divide days into generally agreed-upon equal parts, using early timekeeping devices such as sundials, shadow clocks, and merkhets (plumb-lines used by early astronomers).