I have posed an article how the first two lines of the Purusha is used to Generate Electricity.
Check the sloka for words and Syllables.
Check the period in which the Rig Veda was written and find out Daily Cycles.
Use the unit wave length.
Use The value of light speed then, it was as it is measured today.
Use the derived value of light speed as number of cycles of unit wavelength using the principle of simultaneity (which is self-similar and scale invariant.
Taking the log (10) ratio of difference between measured and derived value.