11. Also, is the speed of light, and is the Planck constant divided by. 12. Where \ hbar is reduced Planck constant and \ nabla ^ 2 is the Laplacian. 13. Suppose we use the Planck Constant as the unit to define our smallest times and lengths. 14. Where is the total energy of the particle, is its momentum, is the reduced Planck constant . 15. Mathematically, it is a extension of it ), the deformation parameter being the reduced Planck constant . 16. The numerical value of the Planck constant depends entirely on the system of units used to measure it. 17. SR is only one restriction for them, spacetime grids have as lower bounds the Planck constant h. 18. In the spin ?( intrinsic angular momentum ? where' is the reduced Planck constant ). 19. Where is the Planck constant , is the particle's mass, and is the speed of light. 20. :Energy of a photon is Plancks constant times the frequency : E =' ?" f.