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
Aodh (given name) Aodh (given name) Aodh (; ) is an Irish and Scottish Gaelic male given name, originally meaning "fire". Feminine forms of the name include Aodhnait and Aodhamair. It appears in even more variants as a surname. As a surname, the root or a variant may be prefixed by "O", "Ó", or "Ui" (meaning "from" or "descendant of"), "Mac" or "Mc" (meaning "son of"), or "Nic" (meaning "daughter of"). The name was originally related to an Irish god of the underworld. The masculine given name Hugh is a common anglicization, although the names are not etymologically linked (see Hughes (surname), Hughes