In general, it is found that classical physics (mechanics, optics, acoustics, thermodynamics, and electromagnetism) works at the macroscopic (above atomic) level where: space and time are contexts in which all the physical phenomenon take place; space and time are considered absolute and that no physical phenomena can affect them; systems' length scales are greater than atomic scale and motions are much slower than the speed of light; and mechanics, electricity, and magnetism embody a continuous wave model of light.
