1. Currently, this empirical law is applied in spinal cord and deep brain stimulation. 2. Von Mises regarded the randomness of a collective as an empirical law , established by experience. 3. In electromagnetic theory, the continuity equation is an empirical law expressing ( local ) charge conservation. 4. Benford's law is an empirical law concerning the distribution of digits in a list of numbers. 5. An empirical law can then be proposed: 6. Obviously T + V is of no help as conservation of energy is an empirical law of physics. 7. Historically, observations lead to many empirical laws , though now it is known that chemistry has its foundations in quantum mechanics. 8. In 2009 he co-edited a special issue of the Journal of Advertising Research with Professor Jerry Wind on empirical laws in advertising. 9. :So all these sources agree that the standard model is an empirical law that has limitations, but is valid in many scenarios. 10. Friction, the force opposing to the relative motion, is usually idealized by means of some empirical laws such as Coulomb s law.