莫爾斯電碼和asci_極客歷史的本週：莫爾斯電碼，火星漫遊者，JRR托爾金誕辰...

莫爾斯電碼和asci Every week we bring you interesting facts from the history of Geekdom. This week in Geek History witnessed the first successful demonstration of the electric telegraph, the safe landing of

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