Charge conservation elementary charge on positive and negative particles must be extremely close to equal, differing by no more than a factor of 10 for the case of protons and electrons. Ordinary matter contains equal numbers of positive and negative particles, protons and electrons, in enormous quantities. If the elementary charge on the electron and proton were even slightly different, all matter would have a large electric charge and would be mutually repulsive. The best experimental tests of electric charge conservation are searches for particle decays that would be allowed if electric charge is not always conserved. No such decays have ever
Graham (given name) Graham (given name) Graham () is a masculine given name in the English language. According to some sources, it comes from an Old English word meaning "grey home". According to other sources, it comes from the surname "Graham", which in turn is an Anglo-French form of the name of the town of Grantham, in Lincolnshire, England. The settlement is recorded in the 11th century "Domesday Book" variously as "Grantham", "Grandham", "Granham" and "Graham". This place name is thought to be derived from the Old English elements "grand", possibly meaning "gravel", and "ham", meaning "hamlet" the English word given to small