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So, taming of steel. The beginning of generating power by burning fossil fuels.
人们能够驾驭钢铁,开始通过燃烧化石燃料发电。
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You'll find Christopher Reeve's star who played "The Man of Steel"
演《钢铁之躯》的克里斯托佛·里夫
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He ended up on a circus sideshow traveling through the country with the big steel pipe that went through his head.
最终,在一个全国巡游的马戏团里,大钢管打烂了他的脑袋,结束了他的生命
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You build a steel plant with a capital cost of several billion dollars.
你可以建立一个钢铁的地球,只要几十亿元的投入。
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Companies did produce agreements to restrict, for example, the production of paper and the production of rubber, and the production of steel, and the production of iron, and the production of railway lines, actually, even quite complicated things.
公司之间的签署了限制产量的协议,比如说有造纸业,橡胶制造业,炼钢业,冶铁业,铁路运输行业,当然还有更复杂的行业
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Things like steel and polymers, or plastics, and ceramics, and of course computers which has progressed remarkably due to the work of engineers in your lifetime, until now you can carry around a cell phone, which would have been unthinkable even 30 years ago.
包括钢铁,聚合物,塑料,陶瓷,当然,计算机这个在你们的有生之年,已经取得令人瞩目的进展的发明,也得归功于工程师的工作,现在你们的手机能随身携带,而这在三十年前是不可想象的
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They were more like railroads or steel companies and it was just understood.
更多是铁路或者钢铁公司,人们也只知其皮毛
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Iron or steel, 800 million tons, almost a billion tons of steel.
铁或钢，每年8亿吨，几乎接近10亿的钢产量。
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So, this is about a quarter of the density of steel.
所以镁的密度是贴的四分之一。
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And steel is the most recycled material.
钢铁几乎是其中最可再生的材料。
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Number one structural metal is steel.
第一常用的结构金属是钢。
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7 Steel is 7.87.
铁是7。
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I could even make it out of steel versus aluminum.
甚至可以用刚合铝来做。
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So you pick a better material like iron and steel, that makes a better bridge, we know that now because we have experience with bridges, but still your bridge might fail.
你选择了钢铁作为材料,来造了一座更好的桥,我们现在能够明晰这一点,是因为在造桥这件事上我们现在很有经验,但即使是我们现在造的桥也仍然会倒塌
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Steel is about 10 cents a pound.
铁是10美分一磅。
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