Long before Newton described gravity, one astronomer worked out precisely how planets move around the Sun. His mathematical laws replaced the ancient idea of perfectly circular orbits.
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Which English mathematician and cleric first proposed the reformed grave calendar adopted as the Gregorian in a 1582 treatise submitted to Rome?
π History Β· 26 votes
Order these UK bank holidays by the year they were officially established as public holidays.
π Society Β· 26 votes
Which British inventor created the first successful mechanical television system, giving a public demonstration in London in 1926?
π History Β· 26 votes
Which everyday phenomenon did Lord Rayleigh explain in the 1870s, earning him a Nobel Prize years later?
π³ 26 votes