The liquefaction of cats...

Since the beginning of the 21st century, the debate over whether cats can achieve a liquid state has periodically appeared on social media, with growing photographic evidence corroborating this claim.

A pivotal moment in the history of the debate was in July 2014 when Marc-Antoine Fardin, a specialist in fluid dynamics affiliated with the Centre National de la Recherche Scientifique (CNRS) and the Institut Jacques Monod at the Université Paris Diderot, published his groundbreaking paper "On the Rheology of Cats: Can a Cat Be Both a Solid and a Liquid?" which won the 2017 IgNobel Prize.

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Liquid cats collected in a photo book

Fortunately for those who have been closely following the latest developments, now there's a photo book you can buy all about liquid cats!

Made with the help of cat lovers from all over Japan, a new photo book is now available that captures the decisive moments of cat liquefaction. Fans of cute cats and serious researchers of cat rheology alike will surely benefit from this publication.

Liquid cats categorized by type

• あんもにゃいと Ammonyaito: Circular and hemispherical whirlpool shape
• にゃぷんたぷん Nyapun-tapun: Overflowing shape due to surface tension
• ぐにゃんぐにゃん Gunyan-gunyan: Flowing shape due to semi-liquefaction
• シュレーディンガーの箱を満たすねこ Cat filling up Schrödinger's box: Liquid in a rectangular parallelepiped-shaped container

Sample photos by category

Publication information

• Name: ねこは液体 neko wa ekitai Cats are liquid
• Author: "Cats are liquid" Research Committee, ed.
• Specifications: 148 mm x 148 mm, 80 pages
• List price: 1,430 JPY (tax included)
• ISBN: 978-4-309-29258-8
• Product page at 河出書房新社 Kawade Shobo Shinsha