1. 역사속의 암호
과학동아 1997년 06호
것이다. 독자 여러분 중 만일 이 문장을 해독할 수 있는 분이 있다면 http://www.iacr.org/china/china.html로 접속해 들어가 해답을 주기 바란다.HLMTAHGBGFNIVZUQUPNZN ABRYCTUGVZXUPBMVERZRLQDBHQGKJFHYXODIE UGMNCBXCFLDBEYVIOHIKNNGUABHFXPCQYZVATXAWIZPVE
것이다. 독자 여러분 중 만일 이 문장을 해독할 수 있는 분이 있다면 http://www.iacr.org/china/china.html로 접속해 들어가 해답을 주기 바란다.HLMTAHGBGFNIVZUQUPNZN ABRYCTUGVZXUPBMVERZRLQDBHQGKJFHYXODIE UGMNCBXCFLDBEYVIOHIKNNGUABHFXPCQYZVATXAWIZPVE
유난히 북적거렸다. 인터넷과 멀티미디어에 대한 세미나가 열리고 있었는데 CERNET(China education and research network)이라는 네트워크 센터가 인터넷 전문가 양성을 위해 개최한 행사였다. 중국 전체 인터넷은 이 CERNET에서 관장하게 되며 해외로 나가는 모든 인터넷은 이곳을 거친다. CERNET의 홈페이지 주소 ...
" which is working out engineering dreams of its own.For instance, there is the old silk route that stretched from China to Europe, along which silk and other Far Eastern commodities made their slow passage westward.(The interruption of this silk route by the Turks was one of the causes that led eventually to the European circumnavigation of Africa and the discovery of America.) Now the ...
지도는 매우 높은 평가를 받고 있다. 저 유명한 '중국의 과학문명'(Science and Civilization in China)의 저자인 니덤(J.Needham)을 비롯한 여러 학자들이 지적한 바와 같이, 그 당시 서유럽에서 만든 어느 세계지도 보다도 우수하다.서유럽과 아프리카대륙에 관한 자료란 어떤 것이었을까. 연구결과 1320년에 ...
spot now occupied by the Crab Nebula. (Nor was this the only nova they reported — — the astronomical annuals of China recorded about 50 guest stars during ancient and medieval times.) Japanese astronomers also reported the appearance of the bright star of 1054.The supernova of 1054 was sufficiently spectacular, however, that it need not have been reported only by astronomers in nations ...
of the ostrich was greater than it is now. Ostrich eggshells are found in widely diverse areas of Africa and even in China.The eggshells are found rather plentifully because they were useful in prehistoric times. One ostrich egg can supply the equivalent of two dozen hen's eggs in scrambled eggs, so it was a desirable food source.The shell of an ostrich egg is remarkably strong. It is about 1 ...
stamped to make it official, so that there would be less opportunity to cheat.Paper money was invented in medieval China so that wealth could become still more portable. In late medieval Europe, the first banking houses were established. Checks were invented, which were individual notes, pieces of paper representing any quantity of money. Then credit cards made it possible to make out only ...
중국과학사학자 '조셉 니덤'(Joseph Needham)은 '중국의 과학과 문명'(Sience and Civilization in China)이라는 제목의 방대한 연구를 시작했다. 아직도 계속되고 있는 그의 연구는 중국의 과학적 기술적 전통의 풍부함을 아주 잘 보여주고 있다. 이러한 그의 연구의 밑바닥에서도 자연히 앞에서 설정한 질문이 ...
China in 1556. We cannot know how accurate that estimate may be, but 242,000 were killed in an earthquake in a city in China in 1976.How can we prevent this?1) We might argue that we should not build cities too close to known plate junctions where most of the major earthquakes are known to occur. That is a lost cause, however. Cities are built where climate and communications are easy-on coast ...
used? Until the 1980s the oldest traces of fire were detected in caves near Zhoukoudian near Beijing, the capital of China. There, traces of ancient campfires, about 500,000years old, were found.No human beings of the modern type Homo sapiens dwelt in those caves. In fact, Homo sapiens had not yet evolved. Living in those caves was a simpler hominid called Homo erectus, who looked more like us ...