人类在2 000多年前就已发现了蕴藏在地下的煤,但是,在相当长的历史时期内,一直采用直接燃烧的办法来得到热量,就像烧木柴那样.这样做不仅没有充分利用煤的价值,而且对周围的环境造成了严重的污染.今天,在日常生活和生产中,人们已经普遍使用煤气作为能源.把煤变成煤气,给人类带来了诸多的方便.与此同时.人类也将永远记住煤气的发现者.英国化学家威廉·梅尔道克.梅尔道克从小就很好动,常常挖空心思要做些别人没有做过的事情,尤其喜欢做那些让大人们吃惊的把戏. Human beings discovered underground coal more than 2,000 years ago, but for a long period of time, direct combustion has been used to get the heat, just like burning wood, which not only fails to make full use of coal Value, but also caused serious pollution of the surrounding environment.Today, in daily life and production, people have been widely used as an energy source of gas.Calcification of coal, to bring a lot of mankind convenience.At the same time, mankind Will always remember the discoverer of gas. British chemist William Meldoch Meldock childhood well, often dare to do something that others have not done, especially like to do for those who surprise adults The trick.