Source: wikibot/kymograph
= Kymograph
{wiki=Kymograph}
A kymograph is an instrument that was historically used to record physiological and other types of data in a graphical format. It consists of a rotating drum wrapped with a sheet of paper on which a stylus records variations in pressure, force, or other parameters over time. The term "kymograph" comes from the Greek words "kyma," meaning wave, and "grapho," meaning to write.