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百年来改变世界的十项发明:X射线技术居榜首(7)
2009-11-06 09:19:16 中华网论坛 发表评论
    

百年来改变世界的十项发明:X射线技术居榜首

第六位:史蒂芬森的“火箭”火车头  

1829年,罗伯特-史蒂芬森(Robert Stephenson)设计的“火箭”火车头在英国兰开夏郡进行的铁轨行驶测试中突破了纪录速度,“火箭”火车头使整个世界由可移动动力代替绳索牵引发动机。此后,该火车头成为蒸汽机车的标准设计,在近百年里携载乘客和货物抵达世界各地。

    历史很容易被改变,另一款被称为“幸运”的火车头被证实性能可超越“火箭”,但是其可靠性稍逊一筹。


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