I thought these were weird similarities between macroscopic electronic circuits and (Bohr) hydrogen model. What do you guys think? . hydrogen self-capacitance (energy level "capacitance") C = 4*pi*eo*br = 5.88798e-21 Farads eo = vacuum permitivity br = Bohr Radius m = electron mass e = elementary charge w = angular frequency f = frequency (Hz) hydrogen "inductance" (at ground state): L = ((br^2) * m) / (e^2) = 9.93734e-14 Henries Orbital (LC resonant) frequency of ground state electron: w = sqrt(1/LC) = 4.134e16 rads/sec Orbital frequency in Hz f = 4.134e16 / (2*pi) = 6.57e15 Hz Orbital Frequency of Hydrogen: v / (2*pi*br) = 6.57e15 Hz v = 2.187e6 (m/s) Here's something else I found interesting. On the macroscopic level step up/down transformers convert current to voltage and vice versa. Viewing current as mass only (electrons), and voltage as the velocity of the electrons (or force moving electrons), the energy level transitions can resemble step-up, and step-down "transformers". I.e electron velocity decreases, and mass increases from n=1 to n=3.