The Antikythera mechanism: an ancient Greek (2nd century BC) mechanical analog computer with gears

The Antikythera mechanism is an ancient mechanical analog computer (as opposed to digital computer) designed to calculate astronomical positions. Continue reading “The Antikythera mechanism: an ancient Greek (2nd century BC) mechanical analog computer with gears”

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The genius of Archimedes; Sun-focusing mirrors and Steam cannons – The legend tested by modern Science

This post is a summary of information on two legendary inventions of Archimedes, the ancient Greek mathematician and engineer; the Sun-focusing mirrors and the Steam cannon, both used to defend Syracuse from the Romans. Science has tested whether or not inventions like these were possible (and, to what extent, effective) back then. Continue reading “The genius of Archimedes; Sun-focusing mirrors and Steam cannons – The legend tested by modern Science”

The ancients knew the Earth is round; the case of Eratosthenes and the first documented measurement of the Earth’s circumference

Eratosthenes was a Greek born in Cyrene in modern-day Libya. As a mathematician, poet, athlete, geographer, astronomer, and music theorist, his vast knowledge made him an ideal fit for the post of librarian at the Museum (Library) of Alexandria. Continue reading “The ancients knew the Earth is round; the case of Eratosthenes and the first documented measurement of the Earth’s circumference”

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