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  2. Eratosthenes - Wikipedia

    en.wikipedia.org/wiki/Eratosthenes

    Eratosthenes created a whole section devoted to the examination of Homer, and acquired original works of great tragic dramas of Aeschylus, Sophocles and Euripides. [6] Eratosthenes made several important contributions to mathematics and science, and was a friend of Archimedes. Around 255 BC, he invented the armillary sphere.

  3. Eratosthenian - Wikipedia

    en.wikipedia.org/wiki/Eratosthenian

    The Eratosthenian period in the lunar geologic timescale runs from 3,200 million years ago to 1,100 million years ago. It is named after the crater Eratosthenes, which displays characteristics typical of craters of this age, including a surface that is not significantly eroded by subsequent impacts, but which also does not possess a ray system.

  4. List of people considered father or mother of a scientific ...

    en.wikipedia.org/wiki/List_of_people_considered...

    The following is a list of people who are considered a "father" or "mother" (or "founding father" or "founding mother") of a scientific field.Such people are generally regarded to have made the first significant contributions to and/or delineation of that field; they may also be seen as "a" rather than "the" father or mother of the field.

  5. History of geography - Wikipedia

    en.wikipedia.org/wiki/History_of_geography

    The size of the Earth was an important question to the Ancient Greeks. Eratosthenes calculated the Earth's circumference with great precision. [14] Since the distance from the Atlantic to India was roughly known, this raised the important question of what was in the vast region east of Asia and to the west of Europe.

  6. 105 True or False Questions—Fun Facts To Keep You ... - AOL

    www.aol.com/lifestyle/105-true-false-questions...

    Related: 300 Trivia Questions and Answers to Jumpstart Your Fun Game Night. True or False Questions About Disney. 86. Cars was Pixar’s first movie. Answer: False – it was Toy Story.

  7. On the Sizes and Distances (Aristarchus) - Wikipedia

    en.wikipedia.org/wiki/On_the_Sizes_and_Distances...

    Eratosthenes (c. 276 – c. 194/195 BC), a Greek mathematician who calculated the circumference of the Earth and also the distance from the Earth to the Sun. Hipparchus (c. 190 – c. 120 BC), a Greek mathematician who measured the radii of the Sun and the Moon as well as their distances from the Earth. On the Sizes and Distances

  8. The Method of Mechanical Theorems - Wikipedia

    en.wikipedia.org/wiki/The_Method_of_Mechanical...

    [1]: 8 The simplest example in modern language is the area of the parabola. A modern approach would be to find this area by calculating the integral =, which is an elementary result in integral calculus. Instead, the Archimedean method mechanically balances the parabola (the curved region being integrated above) with a certain triangle that is ...

  9. Catasterismi - Wikipedia

    en.wikipedia.org/wiki/Catasterismi

    The Catasterismi or Catasterisms (Greek Καταστερισμοί Katasterismoi, "Constellations" or "Placings Among the Stars" [1]) is a lost work by Eratosthenes of Cyrene. It was a comprehensive compendium of astral mythology including origin myths of the stars and constellations .