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 power is an efficient and volatile method of creating electricity using controlled nuclear fission, or, less commonly, nuclear fusion. Most nuclear power plants create energy by submerging uranium molecules in water and then inducing fission in the molecules. This process heats the water, which is transformed into pressurized steam that turns a turbine powering a generator, creating energy.