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电子乃是构成物质的原子的基本的质点之一。它具有重量,但一个电子的重量却是微不足道的,必须积累一千亿亿亿的电子(注:每亿等于一万万,以下准此),方才将近有一英两(1 oz.)的重量。它具有能量,但一个电子的能量也是微不足道的,必须在一秒钟以内有超过两百亿忆的电子流经一只100瓦的电灯内的灯丝,而后这只电灯才能发出寻常的光亮。不过,倘若能够有很多很多的电子汇集到一起,则它们综合所表现的威力,往往非常惊人。像天空的雷震电闪,便是一个浅显的例子。而在精心的控制之下,它们正也可以替我们做许多很精巧很细致的工作。许多的物理学家与工程师都认为电子的发现与今后的利用,对于人类将有极重大的贡献。通用电器公司的一位名工程师白克博士(Dr.W.R.G.
Electrons are one of the basic particles of atoms that make up matter. It has a weight, but the weight of an electron is insignificant. It must accumulate 100 billion billions of electrons (note: every million is equal to 10 million, and it is quasi-hereafter). It is only about one ounce (1 oz.) in weight. It has energy, but the energy of an electron is also insignificant. More than twenty billion mem- ory of electrons must flow through a filament in a 100-watt lamp within one second, and then the lamp can emit ordinary light. However, if many, many electrons can be brought together, the power of their integration is often astonishing. The lightning flash like the sky is a simple example. Under careful control, they are also able to do many very delicate and detailed tasks for us. Many physicists and engineers believe that the discovery and future use of electronics will make a very significant contribution to humanity. Dr. W.R.G., an engineer at General Electric Company