Unexpected thermo-elastic effects in liquid glycerol by mechanical deformation

It is commonly accepted that shear waves do not propagate in a liquid medium. The wave energy supposed to dissipate nearly instantaneously. This statement originates from the difficulty access static stress macroscopic liquids. In this paper, we take different approach. We focus on stability of thermal equilibrium while (glycerol) submitted sudden strain at sub-millimetre scale. A response deformed unveiled. exhibits simultaneous and opposite bands about +0.04 {\deg}C -0.04 temperature variations. changes exclude possibility heat transfer highlight ability store non-uniform thermodynamic states. effects depend linearly amplitude deformation supporting hypothesis propagation (elastic correlations) extending up several hundreds microns. new physical effect can be explained terms underlying phonon physics confined liquids, which unveils hidden solid-like with many similarities glassy systems.