Cryogenics is the science that deals with the production of very low temperatures and their effect on the properties of matter. The visual aspects of experiments in this field are fascinating. The practical aspects seem, at first glance, to be of considerably less consequence. However, this feeling of indifference does not arise as we ponder the ramifications of freezing one class of inanimate objects: dead human bodies. This is the realm of a more specific and indeed very new branch of cryogenics, namely, cryonics.
Daniel R. Spector, Legal Implications of Cryonics, 18 Clev.-Marshall L. Rev. 341 (1969)