Cryogenics is the study of the production of very low temperatures (below a E ‘150 A(deg)C, a E ‘238 A(deg)F or 123 K) and the behavior of materials at those temperatures. This book presents current research from across the globe in the study of cryogenics, including the effect of cryogenic treatment on microstructure and mechanical properties of light weight alloys; the application of Fiber Bragg grating sensors at cryogenic temperatures; cryogenic grinding; liquid oxygen magnetohydrodynamics; and genetic engineering techniques used to improve tolerance to cryopreservation.