FEAR! and they might have also claimed they were sons or daughters of god.
Stalin was elected, however he became a dictator after his election and controlled Russia through fear & military power.
Planck's idea that electromagnetic energy has proportional to its frequency , E = hf and the constant of proportionality is called Planck 's Constant h. Planck conceived of the energy as a particle like energy called a Photon.
Planck's Energy should be called Photon Potential Energy E = hc/r
Yes he did