Appendix A: Numbers and Physical Constants
The Mass of an Electron
In kilograms an electron’s mass is 9.109 381 88 divided by the number 1 with 31 following zeros.
In kilograms an electron’s mass is 9.109 381 88 divided by the number 1 with 31 following zeros.
Particle Parameters
The table below contains useful information for calculating the energy it takes to make a subatomic particle, or for estimating how closely two photons must coincide when they interact to materialize as particle and antiparticle.
The table below contains useful information for calculating the energy it takes to make a subatomic particle, or for estimating how closely two photons must coincide when they interact to materialize as particle and antiparticle.
The Precision of the Expansion Rate
The expansion rate must have been set with a precision of one part in the number 10 raised to the 50th power.
The expansion rate must have been set with a precision of one part in the number 10 raised to the 50th power.
