Joseph Carl Robnett Licklider, or “Lick”, was an American psychologist and computer science pioneer. There are many claims for the “father” of internet technology. Only one has the title of ...

In 1876 Curt Dietzschold (1852-1922), a German mechanical engineer from Dresden was invited to come to Glashütte (a small town in Sächsische Schweiz-Osterzgebirge, which was the birthplace of the ...

The German mechanic, constructor, and optician Anton (Antonius) Braun (see the biography of Anton Braun) (1686-1728) from Möhringen (Baden-Württemberg, Germany), was appointed in 1724 as a mechanician ...

Albert Stettner Jr., a mechanic from Berlin, Prussia, was a holder of 2 German (DE21236 and DE23098 from 1882) and 1 USA (US277627 from 1883) patent for keyboard adding machines. The patents DE23098 ...

In the late 1860s, Cathrinus Nikolay Arbo Collett (see biography of Cathrinus Collett), a young Norwegian civil (railway) engineer, at that time working as an assistant and later a chief of the ...

The 20th century is a time of ubiquity and decline of mechanical calculating machines. In the first half of the century thousands of companies, primarily in Germany and the USA, manufactured millions ...

David Marion Rush of Louisburg, Missouri, applied for a patent for ten-key non-printing manually operated adding machine on July 25, 1883, and the patent (U.S. Patent 292256) was granted on January 22 ...

The Scottish inventor and arithmetician, George Brown, had an affinity for all things numbers. He lived during the 1600s to 1700s and made significant contributions to the field of mathematics. Brown ...