Values across a surface

Catalogued

Turbine hill chart

Made by
Hydraulic turbine testing practice; no single originator
Year
1900s
Field
Engineering
Kind
Computing chart
Room
Values across a surface — Placed by reading its description, not yet studied
Skeleton drawing, not the original plate

4 other forms share this skeleton

Source

Harris 1999, Information Graphics

Attribution less certain: contested, or no single inventor recorded

Searches, not citations

archive.orgcommons.wikimedia.orgscholar.google.com