The 2017 Ig Nobel Prize for physics went to Marc-Antoine Fardin’s paper, *On the Rheology of Cats*, which looked into the fluid dynamics of cats in order to determine whether cats can flow like liquids.

Rheology: the branch of physics that deals with the deformation and flow of matter, especially the non-Newtonian flow of liquids and the plastic flow of solids.

You know, people think mathematics is complicated. Mathematics is the simple bit. Its the stuff we can understand. Its cats that are complicated. I mean, what is it in those little molecules and stuff that make one cat behave differently than another, or that make a cat? And how do you define a cat? I have no idea — John Horton Conway