Definition of physics:
- The science of nature, or of natural objects; that branch of science which treats of the laws and properties of matter, and the forces acting upon it; especially, that department of natural science which treats of the causes ( as gravitation, heat, light, magnetism, electricity, etc.) that modify the general properties of bodies; natural philosophy.
geophysics, particle physics, acoustics, chaos theory, dynamic, pneumatics, spectroscopy, kinetics, aerodynamics, nuclear physics, astrophysicist, dynamics, science of matter and motion, hydraulics, aerophysics, theoretical physics, science of the material world, natural philosophy, physical science, calorie, thermodynamics, mechanics, kinetic, astrophysics, optics, Newtonian.
- "Pioneers of Science", Oliver Lodge.
- "Rip Foster in Ride the Gray Planet", Harold Leland Goodwin.
- "The Answer", Henry Beam Piper.