Electronics.
"The study of the design of circuits using transistors and microchips, and with the behaviour and movement of electrons in a semiconductor, conductor, vacuum, or gas."
"The study of the design of circuits using transistors and microchips, and with the behaviour and movement of electrons in a semiconductor, conductor, vacuum, or gas."
"The study of the motion of bodies under the action of physical forces"
"The iron fist of the real, inside the velvet glove of airy mathematics."
"The combined studies of heat, work, and temperature and their relation to energy, entropy, and the physical properties of matter and radiation."
"The geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics."
"The study of the fundamental subatomic particles, including both matter (and antimatter) and the carrier particles of the fundamental interactions."
"The study of the physical interaction among electric charges, magnetic moments, and electromagnetic fields."
"The theory that explains how speed, mass, time, and space are all interrelated, published by Albert Einstein in 1905."
"The study of celestial objects, space, and the physical universe as a whole."
"The fundamental theory that describes the behaviour of nature at and below the scale of atoms."