_{Gordon and Betty Moore Professor Emeritus of Engineering and Applied Science at the California Institute of Technology (Caltech). Ph.D. - Caltech.}

_{Former CTO, Mobile & Wireless, Broadcom Corporation, Ph.D. - Rensselaer Polytechnic Institute.}

_{Jonathan B. Postel Professor of Computer Science at the University of California, Los Angeles. Ph.D. - MIT.}

_{Professor of the Graduate School and Robert S. Pepper Distinguished Professor Emeritus in the Electrical Engineering and Computer Science (EECS) Department at UC Berkeley. Ph.D. - UC Berkeley.}

Physics is the natural science that studies matter and energy and the interactions between them. It is a branch of science that deals with the fundamental principles of the universe, from the smallest subatomic particles to the largest structures in the cosmos. Physics is the foundation of many other sciences, such as chemistry, engineering, and materials science, and it plays a central role in our understanding of the natural world.

One of the main areas of study in physics is mechanics, which deals with the motion of objects and the forces that cause that motion. This includes the study of kinematics, which deals with the description of motion, and dynamics, which deals with the causes of motion. Classical mechanics deals with the motion of macroscopic objects, while quantum mechanics deals with the motion of subatomic particles.

Another important area of study in physics is thermodynamics, which deals with the relationship between heat, energy, and work. It includes the study of the laws of thermodynamics, which describe the properties of systems in thermal equilibrium, and statistical mechanics, which deals with the behavior of systems that are not in equilibrium.

Another area of study in physics is electromagnetism, which deals with the behavior of electric charges and the forces that they exert on each other. This includes the study of electric fields, magnetic fields, and electromagnetic waves, such as light. It also includes the study of electric circuits and the behavior of electromagnetic waves in different materials.

A fourth area of study in physics is optics, which deals with the properties of light and the behavior of light as it travels through different materials. This includes the study of reflection, refraction, diffraction, and interference of light. It also includes the study of the behavior of light in optical instruments, such as telescopes and microscopes.

A fifth area of study in physics is atomic and nuclear physics, which deals with the properties and behavior of atoms and nuclei. This includes the study of the structure of atoms, the behavior of electrons in atoms, and the behavior of nuclei. It also includes the study of radioactivity and the behavior of subatomic particles.

A sixth area of study in physics is cosmology, which deals with the properties and behavior of the universe as a whole. This includes the study of the origin, structure, and evolution of the universe. It also includes the study of the properties and behavior of galaxies, stars, and other celestial objects.

A seventh area of study in physics is particle physics, which deals with the properties and behavior of subatomic particles. This includes the study of the behavior of quarks and leptons, the behavior of particles in high-energy collisions, and the behavior of particles in the early universe. It also includes the study of the properties and behavior of the fundamental particles and forces that make up the universe.

Finally, a eight area of study in physics is the area of materials science, which deals with the properties and behavior of materials, including metals, ceramics, polymers, and composite materials. It also includes the study of the behavior of materials under different conditions such as temperature, pressure and the application of external forces. It is closely related to engineering fields, where the knowledge of the properties and behavior of materials is used to design and develop new products, technologies, and processes.

Overall, physics is a broad and fundamental field of science that deals with the properties and behavior of matter and energy in the universe. It provides a theoretical framework for understanding the natural world and has a wide range of practical applications in fields such as technology, medicine, and energy.