published on: 2013-12-20 14:44:47
tush.tumblr.com/post/70535555652/
keslertran: The Titan
larsensotelo: Alyssa, Los Angeles © Larsen Sotelo
tush.tumblr.com/post/70593593352/
Enthalpy-Entropy Diagram for Steam by C-LJ.B on Flickr
NationAss Gifgraphics