二十世纪初期,人类发现了镭以后,关于原子能——能的新形态——可能利用的最早观念就已经萌芽了。研究和记算指出,在放射性蜕变时所发出的能量,要比有关分子转变的任何已知化学反应所放出的能量大几万倍,甚至大几百万倍。这些研究和计算向科学家们证实了,由很少量的物质中可以得到大量的能。初期,人们还没有观察到放射性物质不断放出的能量,会引起物质的变化,只是觉得放 After the discovery of radium by mankind in the early twentieth century, the earliest idea about the possible utilization of atomic energy, a new form of energy, has just begun to emerge. Research and calculations show that the energy emitted during radioactive decay can be tens of thousands or even millions of times greater than the energy released by any known chemical reaction involving molecular transformation. These studies and calculations confirm to scientists that a great deal of energy can be obtained from very small quantities of matter. Early, people have not observed the continuous release of radioactive material energy, will cause changes in material, just think put