This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
GibbsMaxwell surfaces. eoht info sthermodynamicsurface joint diagram of figures one and two from Willard Gibbs graphical thermodynamics articles transposed by James Maxwell in onto three dimensional surface and made into plaster surface often called Maxwell's thermodynamic surface PDold Original upload log page en GibbsMaxwellsurfaces