What Is Nuclear Criticality? How Much Clean Energy Can It Produce?

Albert Einstein had foreseen that nuclear energy would secure the energy needs of the world, or that it could be quite dangerous. In 1939, Einstein and other scientists wrote a famous letter to Franklin D. Roosevelt explaining that a nuclear chain reaction in uranium could release vast amounts of power and might soon become possible. We have now moved on from the gloomy days of the Manhattan Project . Today, nuclear reactors generate about 10% of the world’s electricity, mostly using fuel like U