The Four Great Inventions of ancient China are,according to Chinese tradition and the British scholar and biochemist Joseph Needham:The Compass Gunpowder Papermaking Printing These inventions are celebrated in Chinese culture for their historical significance and as signs of ancient China's advanced science and technology.These four discoveries had an enormous impact on the development of Chinese civilization and a far-ranging global impact.Although he may have been unaware of the origin of these inventions,in 1620 the English philosopher Francis Bacon noted their importance by writing:Printing,gunpowder and the compass:These three have changed the whole face and state of things throughout the world; the first in literature,the second in warfare,the third in navigation; whence have followed innumerable changes,in so much that no empire,no sect,no star seems to have exerted greater power and influence in human affairs than these.
最新问答： By the end of last term, they ___(work)there for ten years. 地球直径多长拜托各位了 3Q 1+1=?在算错的情况下猜一猜 如图，为测量小区内池塘最宽处A、B两点间的距离，在池塘边定一点C，使∠BAC=90°，并测得AC的长18m，BC的长为3 利用因式分解计算：（1）3.14×55 2 -3.14×45 2 （2）108 2 -108×16+64． 关于唐婉《钗头凤》的一个问题（一个字的读音） London,the,to ,is ,plane,flying连词成句 思考题为：从十位数7677782980中划去5个数字,使剩下的5个数字（先后顺序不改变）组成的五位数最小,这个最小的五位 同旁内角是不是一定互补?如题, 进化论是谁提出的 写出几个描写色彩的词语 往一只箱子里装豆子 豆子的数目每秒钟增加一倍 一分钟后刚好装满箱子 请问 装满1/8箱子时要用几秒?拜托各 Continue to work hard!Buy a house!Buy a car!My future life w 求函数值域有那些方法 根据下列要求，写出有关反应的化学方程式 丁立梅散文 《像菜花一样幸福的燃烧》读后感或赏析 急求啊! 小明从家到学校,如果每分钟走120米,则早到3分钟；每分钟走90米,则迟到2分钟.小明家到学校多少米? 不同体积的同种物质密度一样吗把一木块3等分后,关于每个木块的密度是（ ） 为什么氧气分子轨道上有两个是单电子轨道?在给定一个分子时如何写出它的分子轨道啊?各位高手帮忙解释... 在一块长42米,宽36米的长方形地上,围一块最大的正方形菜地,应该怎么围,这块菜地的边长是多少米?周长是多少米?
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