In 2017, the Schnobel Prize in Physics was awarded to Mark-Antonin Ferdine for proof that cats can be considered both solid body and liquid, as they take the shape of the vessel in which they lie. Photocheasia - full. On them cats take the form of a vessel, which, according to a scientist, is a liquid criterion.
Interestingly, the physicist drew attention to the time of spreading fluffy liquid. So for old cats this time will be less than for playful and young.
The Schnobel Prize was inflicted as a parody of the Nobel Prize and are awarded annually to the authors of the most witty and unusual research.