John Napier

Wilhelm Schickard and his Calculating Clock

Wilhelm Schickard and his Calculating Clock

On October 23, 1635, German astronomer and mathematician Wilhelm Schickard, who constructed the very first mechanical calculator, passed away. His famous calculator was able to perform additions and subtractions. For more complicated operations, it provided so-called Napier bones, named after the Scottish mathematician John Napier,[1] who came up with the idea of logarithms. Although it is widely believed that the first mechanical calculating device was created by the French mathematician Blaise Pascal in…
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Henry Briggs and the Popularization on Logarithms

Henry Briggs and the Popularization on Logarithms

On January 26, 1630, English mathematician and committed puritan Henry Briggs passed away. He is notable for changing the original logarithms invented by John Napier into common (base 10) logarithms, which are sometimes known as Briggsian logarithms in his honour. Henry Briggs was born in Halifax, however, his exact date of birth remains unknown. His early family life is also not too well known, but it is believed that he became very…
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John Napier and his Napier Bones

John Napier and his Napier Bones

On April 4, 1617, Scottish mathematician, physicist, astronomer and astrologer John Napier of Merchiston, the 8th Laird of Merchistoun passed away. John Napier is best known as the discoverer of logarithms. He was also the inventor of the so-called “Napier’s bones“, a kind of abacus for calculation of products and quotients of numbers. Napier also made common the use of the decimal point in arithmetic and mathematics. John Napier grew up in…
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