published on: 2013-12-21 21:09:36
Enthalpy-Entropy Diagram for Steam by C-LJ.B on Flickr
NationAss Gifgraphics
troisdumatin: Tush appreciation post.
tush.tumblr.com/post/70716988673/
tush.tumblr.com/post/70902657466/
tush.tumblr.com/post/71101389855/