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Fuller found it in nature. It appeared in the shapes of organic compounds and metals.
VOA: special.2010.05.30
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So, practitioners who understood what we would know to be chemistry were highly valued in that society. And then, you may expand it to other chemical processes, dyeing of cloth, glassmaking, and metals extraction.
所以，理解我们所知为化学的,先行者们，在那个社会是,非常宝贵的，当时，你可能将其扩展到另一个化学过程，如布料的染色，玻璃的制造，还有金属提取。
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And en route we discovered that we can divide the Periodic Table into metals, 75% which is about 75% of the Periodic Table.
我们发现,我们能够将元素周期表划出金属，大概占。
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Rare earths include the fifteen lanthanide metals along with yttrium and scandium.
VOA: special.2010.10.08
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All the components that make up the coffee, and all the impurities, etcetera. cadmium, heavy metals, arsenic, whatever is in your coffee.
以及所有的杂质等等，钙，重金，砷，任何在你咖啡里的东西。
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The material was a mixture of the metals nickel and chromium.
VOA: special.2010.07.07
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And in the second half of this course, talk to us about transition metals in depth, and that's when we'll really delve into d orbitals.
在这个课程的后半部分，会深入的讲到，过渡金属，这时候，你们可以研究d轨道。
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the ax has enlarged the borders of our settlements, and the mines, as well of iron and coal as of the precious metals, have yielded even more abundantly than heretofore.
VOA: special.2009.11.23
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I showed you last day what happens when they form and we were able to electrolyze and make fantastic metals like magnesium.
昨天我讲过,当离子液体形成我们就可以使其电解,生成出神奇的金属，比如镁。
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Heavy metals,such as lead,and products like insecticides have recently been linked to abormalities in newborns and attention deficits in toddlers.
VOA: standard.2010.08.09
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So, if we're going to go to the moon, we're going to go to Mars,we want to be able to produce oxygen, structural metals and photovoltaic materials from in situ resources.
如果我们要去月球上，我们要去火星上，我们则必须要制造,氧气，结构金属和光电材料,就在原地制造。
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They allege that the company's drilling polluted their water with chemicals,metals and methane, the main constituent of natural gas, causing explosions as well as gastrointestinal and neurological illness.
VOA: standard.2010.01.02
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So, these are poor electron donors but also a good electron acceptors, and we call these non-metals.
所以这些元素都不易失电子,但是它们是很好的电子受体，我们把这些叫做非金属。
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So, there were seven known metals at the time, and seven heavenly bodies.
所以，当时有7种已知的金属，还有7个天体。
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And, Rutherford tried various metals.
卢瑟福尝试了不同的金属。
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And, this is all that was known at that time, seven metals, carbon, and sulfur.
这是当时所知道的了，7种金属，碳，和硫磺。
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And, in fact, this is the case for all the alkali metals.
事实上，所有的碱金属都有这样的性质。
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We started with just the seven metals and carbon plus sulfur, it was the point of departure for Democritus.
我们开始讲了7种金属,还有碳和硫磺，那就是Democritus的起点。
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Liquid metal. Solid metals melt and become a liquid metal like mercury.
液态金属，固态金属熔化,形成一种像水银一样的液态金属。
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So, my final example is from Alan Davidson's lab, and Alan is an inorganic chemist -- he loved those transition metals and they're unique properties, and he designed this compound, it's called Cardiolite, Cardiolite and it's used in heart imaging.
最后一个例子是Alan，Davidson实验室，他是个无机化学家-,他喜欢研究过渡金属,和它们的奇特性质，他设计了这种化合物，叫做。
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And, these are called semi-metals or metalloids.
这些元素被称作半金属或非金属。
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And, we call these in simple English, metals.
而且，我们简洁地把它们称为金属。
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