Mission impossible: Dr Robert Goddard was mocked for using a blackboard at Clark University in Worcester, Massachusetts, in 1924, to describe how man flying to the Moon would one day be possible

1924年，当罗伯特·戈达德博士在马萨诸塞州伍斯特市克拉克大学的黑板上演示将来如何把地球人送上月球时，他被嘲笑成是痴人说梦

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THERE are, writes Robert Clark, two concepts of the legendary city on the Banks of the Arno in northern Italy.

罗伯特·克拉克写到，在意大利北部阿尔诺河(Arno)的两岸，人们对于这座传奇城市有着两种不同的概念。

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THERE are, writes Robert Clark, two concepts of the legendary city on the Banks of the Arno in northern Italy.

罗伯特·克拉克写到，在意大利北部阿尔诺河(Arno)的两岸，人们对于这座传奇城市有着两种不同的概念。

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