Pinwheel calculator
id:
pinwheel-calculator-294-10059737
title:
Pinwheel calculator
text:
A pinwheel calculator is a class of mechanical calculator described as early as 1685, and popular in the 19th and 20th century, calculating via wheels whose number of teeth were adjustable. These wheels, also called pinwheels, could be set by using a side lever which could expose anywhere from 0 to 9 teeth, and therefore when coupled to a counter they could, at each rotation, add a number from 0 to 9 to the result. By linking these wheels with carry mechanisms a new kind of calculator engine was
brand slug:
wiki
category slug:
encyclopedia
description:
Type of mechanical calculator
original url:
https://en.wikipedia.org/wiki/Pinwheel_calculator
date created:
date modified:
2023-11-16T17:11:57Z
main entity:
{"identifier":"Q1429194","url":"https://www.wikidata.org/entity/Q1429194"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/47/Roue_%C3%A0_nombre_de_dents_variables.png","width":689,"height":684}
fields total:
13
integrity:
15