MARTIN BOND / SCIENCE PHOTO LIBRARY MARTIN BOND / SCIENCE PHOTO LIBRARY
Nuclear power station. External view of a nuclear power station. The domes at lower left and lower right each house a pressurised water reactor. These reactors use a fissile material, such as uranium-235, as fuel. When a neutron subatomic particle strikes a uranium-235 nucleus, the nucl- eus may split, releasing energy and more neutrons. The heat is removed by water which then passes through a heat exchanger to boil water in a secondary circuit. This then drives a turbogen- erator to make electricity. Nuclear power stations produce no acid rain or greenhouse gases, but make radioactive waste. Photographed at Palo Verde in California, USA, where there are three reactors.
Model release not required. Property release not required.