of soil physical properties and processes. Cryogenics – cryogenics is the study of the production of very low temperature (below −150 °C, −238 °F or 123K) and the behavior of materials at those temperatures. Econophysics – interdisciplinary research field, applying theories and methods originally developed by physicists to solve problems in economics Materials physics – use of physics to describe materials in many different ways such as force, heat, light, and mechanics. Vehicle dynamics – dynamics of vehicles, here assumed to be ground vehicles. Philosophy of physics - deals with conceptual and interpretational issues in modern physics, many of which overlap with research done by certain kinds of theoretical physicists. History of physics History of physics – history of the physical science that studies matter and its motion through space-time, and related concepts such as energy and force History of acoustics – history of the study of mechanical waves in solids, liquids, and gases (such as vibration and sound) History of agrophysics – history of the study of physics applied to agroecosystems History of soil physics – history of the study of soil physical properties and processes. History of astrophysics – history of the study of the physical aspects of celestial objects History of astronomy – history of the studies the universe beyond Earth, including its formation and development, and the evolution, physics, chemistry, meteorology, and motion of celestial objects (such as galaxies, planets, etc.) and phenomena that originate outside the atmosphere of Earth (such as the cosmic background radiation). History of astrodynamics – history of the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other spacecraft. History of astrometry – history of the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies. History of cosmology – history of the discipline that deals with the nature of the Universe as a whole. History of extragalactic astronomy – history of the branch of astronomy concerned with objects outside our own Milky Way Galaxy History of galactic astronomy – history of the study of our own Milky Way galaxy and all its contents. History of physical cosmology – history of the study of the largest-scale structures and dynamics of the universe and is concerned with fundamental questions about its formation and evolution. History of planetary science – history of the scientific study of planets (including