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- Stepped_Reckoner abstract "The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694. The name comes from the translation of the German term for its operating mechanism; staffelwalze meaning 'stepped drum'. It was the first calculator that could perform all four arithmetic operations: addition, subtraction, multiplication and division.Its intricate precision gearwork, however, was somewhat beyond the fabrication technology of the time; mechanical problems, in addition to a design flaw in the carry mechanism, prevented the machines from working reliably.Two prototypes were built; today only one survives in the National Library of Lower Saxony (Niedersächsische Landesbibliothek) in Hanover, Germany. Several later replicas are on display, such as the one at the Deutsches Museum, Munich. Despite the mechanical flaws of the Stepped Reckoner, it suggested possibilities to future calculator builders. The operating mechanism, invented by Leibniz, called the stepped cylinder or Leibniz wheel, was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator.".
- Stepped_Reckoner thumbnail Leibnitzrechenmaschine.jpg?width=300.
- Stepped_Reckoner wikiPageExternalLink newsdetail.asp?newsid=928.
- Stepped_Reckoner wikiPageExternalLink leibniz.htm.
- Stepped_Reckoner wikiPageID "2780664".
- Stepped_Reckoner wikiPageRevisionID "602180030".
- Stepped_Reckoner hasPhotoCollection Stepped_Reckoner.
- Stepped_Reckoner subject Category:Gottfried_Leibniz.
- Stepped_Reckoner subject Category:Mathematical_tools.
- Stepped_Reckoner subject Category:Mechanical_calculators.
- Stepped_Reckoner type Calculator109887034.
- Stepped_Reckoner type CausalAgent100007347.
- Stepped_Reckoner type Expert109617867.
- Stepped_Reckoner type LivingThing100004258.
- Stepped_Reckoner type MechanicalCalculators.
- Stepped_Reckoner type Object100002684.
- Stepped_Reckoner type Organism100004475.
- Stepped_Reckoner type Person100007846.
- Stepped_Reckoner type PhysicalEntity100001930.
- Stepped_Reckoner type Whole100003553.
- Stepped_Reckoner type YagoLegalActor.
- Stepped_Reckoner type YagoLegalActorGeo.
- Stepped_Reckoner comment "The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694. The name comes from the translation of the German term for its operating mechanism; staffelwalze meaning 'stepped drum'.".
- Stepped_Reckoner label "Stepped Reckoner".
- Stepped_Reckoner label "Stepped Reckoner".
- Stepped_Reckoner label "Stepped Reckoner".
- Stepped_Reckoner label "Stepped reckoner".
- Stepped_Reckoner label "Калькулятор Лейбница".
- Stepped_Reckoner sameAs Stepped_Reckoner.
- Stepped_Reckoner sameAs Stepped_Reckoner.
- Stepped_Reckoner sameAs Stepped_reckoner.
- Stepped_Reckoner sameAs m.0827qs.
- Stepped_Reckoner sameAs Q1968697.
- Stepped_Reckoner sameAs Q1968697.
- Stepped_Reckoner sameAs Stepped_Reckoner.
- Stepped_Reckoner wasDerivedFrom Stepped_Reckoner?oldid=602180030.
- Stepped_Reckoner depiction Leibnitzrechenmaschine.jpg.
- Stepped_Reckoner isPrimaryTopicOf Stepped_Reckoner.
