Sometimes other signs and symptoms precede sudden cardiac arrest. These may include fatigue, fainting, blackouts, dizziness, chest pain, shortness of breath, weakness, palpitations or vomiting. But sudden cardiac arrest often occurs with no warning.
In the core of nuclear reactors, the fission of uranium atoms releases energy that heats water to about 520 degrees Farenheit. This hot water is then used to spin turbines that are connected to generators, producing electricity.
Nuclear Plants. Nuclear plants use the fission process to generate the energy needed to produce electricity. In a nuclear plant, atoms of low-grade uranium are split apart. This creates the heat needed to create steam. The highly pressurized steam then travels through pipes to fan-like blades in a turbine.