Hutchinson-Gilford Progeria Syndrome (HGPS) is a lethal congenital disorder, characterised by premature appearance of accelerated ageing in children. Although HGPS was first descri‐ bed by Jonathan Hutchinson [1] and then by Hastings Gilford [2] more than a century ago, it was not until 2003 that the genetic basis of HGPS was uncovered [3, 4]. Approximately 90% of HGPS patients have an identica...

Lattice materials are interesting mechanical metamaterials, and their properties often related to the presence of mechanisms. The existence periodic mechanisms can be indicated by Guest-Hutchinson (GH) modes, since GH modes sometimes infinitesimal versions However, not every mode comes from a mechanism. This paper focuses on: (1) clarifying relationship between mechanisms; (2) answering questio...