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A ready reckoner is a printed book or table containing pre-calculated values, often multiples of given amounts. They were widely used in shops and by tradesmen before the advent of cheap electronic calculators, metric weights and measures and decimal currencies in the 1970s.
Difference between Gregorian and Julian calendar dates (ready-reckoner) Old New Year – Informal traditional holiday based on the Julian calendar; Little Christmas – Alternative title for 6 January ("Old Christmas")
Reckoner. " Reckoner " is a song by the English rock band Radiohead, released on their seventh album, In Rainbows (2007). It was produced by Nigel Godrich and developed while Radiohead were working on another song, " Feeling Pulled Apart by Horses ". Remixes were released by James Holden, Flying Lotus and Diplo.
Pascal's calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen. [2] He designed the machine to add and subtract two numbers ...
The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of London [2] and completed in 1694). [1] The name comes from the translation of the German term for its operating mechanism, Staffelwalze ...
Born. c. 1703. Died. May 1773 (aged c. 80) Stepney, England, Great Britain. John Entick ( c. 1703 – May 1773) was an English schoolmaster and author. He was largely a hack writer, working for Edward Dilly, and he padded his credentials with a bogus M.A. and a portrait in clerical dress; some of his works had a more lasting value.
Frontispiece of a T. J. Allman edition. A New System of Domestic Cookery, first published in 1806 by Maria Rundell, was the most popular English cookery book of the first half of the nineteenth century; it is often referred to simply as Mrs Rundell, but its full title is A New System of Domestic Cookery: Formed Upon Principles of Economy; and Adapted to the Use of Private Families.
The Sand Reckoner (Greek: Ψαμμίτης, Psammites) is a work by Archimedes, an Ancient Greek mathematician of the 3rd century BC, in which he set out to determine an upper bound for the number of grains of sand that fit into the universe. In order to do this, Archimedes had to estimate the size of the universe according to the contemporary ...