Aerodynamics is the branch of physics that studies the behavior of air and other gases in motion, particularly when interacting with solid objects. It is fundamental to the design and analysis of vehicles, aircraft, and structures to optimize performance and ensure stability.
Astrophysics is a branch of astronomy that applies the principles of physics and chemistry to understand the nature of celestial bodies and cosmic phenomena. It encompasses the study of the Sun, stars, galaxies, exoplanets, the interstellar medium, and the cosmic microwave background, analyzing their luminosity, density, temperature, and chemical composition.
Cryogenics is the branch of physics and engineering that studies the production and effects of extremely low temperatures, typically below -150°C (123 K). It encompasses the liquefaction of gases and the behavior of materials at these temperatures, with applications across various scientific and industrial fields.
General relativity is a 1915 theory of gravitation developed by Albert Einstein that models gravity as the curvature of spacetime produced by energy and momentum. It underpins modern astrophysics and cosmology, predicting phenomena such as black holes, gravitational waves, gravitational lensing, and the expansion of the universe, and has been repeatedly confirmed by high-precision experiments and observations.
In physics, a quantum is the minimum amount of any physical entity involved in an interaction, representing discrete units of energy, charge, or other physical properties.
Quantum physics is a fundamental branch of physics that studies the behavior of matter and energy at the atomic and subatomic levels, introducing concepts such as wave-particle duality, superposition, and entanglement.