Can you run a 140,000 kilogram train on just the steam generated by solar power?
仅仅依靠太阳能产生的蒸汽，14万公斤的火车能驱动起来吗？
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Starting in the late 18th and early 19th century, humans harnessed the power of steam and coal to run machines, and the result was an explosion of material abundance.
Concentrating Solar at Nevada Solar One near Las Vegas, oil piped down long rows of reflectors soaks up focused sunlight, becoming hot enough to make steam and run a 64-megawatt power plant.