Harmonograph
id:
harmonograph-246-17314374
title:
Harmonograph
text:
A harmonograph is a mechanical apparatus that employs pendulums to create a geometric image. The drawings created typically are Lissajous curves or related drawings of greater complexity. The devices, which began to appear in the mid-19th century and peaked in popularity in the 1890s, cannot be conclusively attributed to a single person, although Hugh Blackburn, a professor of mathematics at the University of Glasgow, is commonly believed to be the official inventor. A simple, so-called "lateral
brand slug:
wiki
category slug:
encyclopedia
description:
Device using pendulums to create images
original url:
https://en.wikipedia.org/wiki/Harmonograph
date created:
date modified:
2024-04-16T03:13:53Z
main entity:
{"identifier":"Q240559","url":"https://www.wikidata.org/entity/Q240559"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/1/11/Harmon%C3%B3grafo.jpg","width":6106,"height":5617}
fields total:
13
integrity:
15