PITTSBURGH (KDKA) â The Pittsburgh Steelers and the city-county Sports & Exhibition Authority have reached an agreement to add 3,000 seats to Heinz Field. The Steelers say the seats will be added to the South Plaza for the 2015 season.
The beta particle is a form of ionizing radiation related to other common forms of radiation, alpha particles and gamma rays.The beta particle is a high-speed electron or positron released from a degenerating radioactive nucleus.Being medium-energy and low mass, beta particles are one of the least damaging forms of radiation, but still a very significant health concern.he beta particle is a high-speed electron or positron released from a degenerating radioactive nucleus. Being medium-energy and low mass, beta particles are one of the least damaging forms of radiation, but still a very significant health concern.
At the basic level, the nucleus of an atom is made up of protons and neutrons. At the more fundamental level, the nucleus of an atom is made up of quarks and other sub-subatomic particles, such as leptons and gauge bosons. Two down quarks and one up quark make up a neutron, while one down quark and two up quarks make up a proton.