In particular, the energy of a photon equals Planck's constant times the frequency of the radiation. Mathematically, this is given by the equation E = hf. Planck's constant is the fundamental constant of quantum theory that determines the scale of the small-scale world.lanck's constant = 6.63 * 10^-34 joule-second (J-s). The total energy in an electromagnetic wave is the sum of the energies of each photon in the wave. The energy of a photon is so small that we usually measure it in electronvolts (eV). One eV is the potential energy of each electron in a 1-volt battery.
A social revolution inevitably encounters an obstacle in the form of the political power of the ruling class. Hence, the first act of a social revolution is political revolution, the attainment of state power by the revolutionary class.
the social sciences, sociology emerged in Western Europe as a distinct discipline in the mid-1800s. Auguste Comte, Herbert Spencer, Karl Marx, Emile Durkheim, and Max Weber were early thinkers in the development of sociology. The idea of applying the scientific method to the social world, known as positivism, was first proposed by Auguste Comte. Based on this innovation and Comteâs effort to apply the scientific method to social life, he is credited as being the founder of sociology.