Mechanical engineering including mechanical and chemical engineering. At its simplest, thermodynamics is the study of energy, its use and transformation through a system. Typically, engineering thermodynamics is concerned with changing energy from one form to another. As an example, automotive engines convert chemical energy (enthalpy) from the fuel into heat, and then into mechanical work that eventually turns the wheels. Thermodynamics principles are used by mechanical engineers in the fields of heat transfer, thermofluids, and energy conversion. Mechanical engineers use thermo-science to design engines and power plants, heating, ventilation, and air-conditioning (HVAC) systems, heat exchangers, heat sinks, radiators, refrigeration, insulation, and others.
Feathers: The Evolution of a Natural Miracle Adult Science Book category, presented by the American Association for the Advancement of Science and Subaru. "Feathers" was listed among the top ten best books of 2011 in the Sci-Tech category by the "Library Journal". "Feathers" received the John Burroughs Medal in 2013, which is awarded annually by the John Burroughs Association to "the author of a distinguished book of natural history". Reception to "Feathers" has been positive. Amanda Katz, in a review published by "The New York Times", wrote that because "Feathers" is a work of synthesis, bird enthusiasts will find the book's content already "familiar", but noted that