David Phillips is Professor of Physical Chemistry at Imperial College, London, where he studies light and lasers. He is a Fellow of the Royal Chemical Society and was recently awarded its Nyholm Medal. An enthusiastic popularizer of science to young people, he has given lectures all over the world. 大衛(wèi)·菲利普斯是倫敦帝國理工學(xué)院的物理化學(xué)教授，他在那里研究光和激光。他是英國皇家化學(xué)學(xué)會的會員，被授予尼霍爾姆獎?wù)隆Ｋ麩嵝牡叵蚰贻p人普及科學(xué)知識，在世界各地做過演講。 Light is strange, sometimes dazzling, sometimes dim. It can be coloured, white or invisible. Light has incredible energy, and zooms at amazing speeds across the Universe. Most of the light on the young Planet Earth came from the Sun, starlight and lightning. Humans have now found many different ways of making light. The most amazing light source ever invented can be billions of times more powerful than a light bulb. It is called a laser. 光是奇怪的，有時耀眼，有時暗淡，它可以是彩色的，白色的或看不見的。光具有令人難以置信的能量，并以驚人的速度在宇宙中飛馳。年輕的地球上的大部分光線來自太陽、星光和閃電。人類現(xiàn)在已經(jīng)發(fā)現(xiàn)了許多不同的制造光的方法。有史以來最神奇的光源可以比一個燈泡強(qiáng)數(shù)十億倍。它被稱為激光。