现代发明英语

采纳The computer is a useful machine. It is one of the most important inventions. The oldest kind of computer is the abacus, used in China many centuries ago, but the first large and modern computer was invented in 1946. The computer could work out maths problems quite fast. Now the computers are getting smaller and smaller, and computing faster and faster. Many scientists agree that computers can now do many things, but they cannot do everything. Who knows what the computers tomorrow will be like? Will computers bring good things or bad things to people? The scientists today have to decide how to use the computers tomorrow.电脑是一个有用的机器。这是最重要的发明之一。最古老的计算机是算盘,几百年前就在中国使用,但第一大和现代电脑是1946年发明的。电脑可以很快解决数学问题。现在,电脑变得越来越小,而计算速度却越来越快。现在许多科学家认为电脑可以做许多事情,但是他们不能做所有的事。谁知道明天的电脑会是什么样子呢?电脑会带来好事情还是坏事情的人吗?科学家们今天明天必须决定如何使用电脑。

1、The compass

A compass is a simple instrument for judging directions. The predecessor is si nan. The main component is a magnetic needle mounted on a shaft that can rotate freely.

Under the action of the geomagnetic field, the magnetic needle can stay in the tangential direction of the magnetic meridian.

The North Pole of the magnetic needle points to the geographic North Pole, which can be used to identify directions.

Commonly used in navigation, geodesy, travel and military, etc. N for north, E for east, W for west, S for compass.

2、Paper-making

Papermaking is one of China's four great inventions and an outstanding invention in the history of human civilization. China was the first country in the world to raise silkworms and weave silk.

In ancient China, the silk cocoons of the working people and above were used to draw silk and weave silk. After finishing the floc, the bamboo mat will be left some residual floc.

When the number of drift floc more, bamboo mat on the residual floc will be accumulated into a layer of thin fiber, after drying off, can be used for writing.

This flocculant floating there aren't many by-products, and call it h 蹏 on ancient book or side effect. This shows that the origin of Chinese papermaking is closely related to silk floc.

3、Gunpowder

A black or brown explosive, mechanically mixed with potassium nitrate, charcoal, and sulfur, initially in powder form and later in granules of different sizes, for different purposes,

until the use of smokeless gunpowder, has been used as the only military propellant.

4、The printing press

The earliest engraving found so far is a single page version of the douroni sutra in Indian Sanskrit, printed on linen paper, published between 650 and 670 years ago, and unearthed in a tang dynasty tomb near xi 'an in 1974.

In 1966, archaeologists in South Korea discovered a miniature version of the doloni buddhist sutra, which contained the text of the zuren script issued by empress wu zetian of the tang dynasty (C. 690-705).

Scholars determined that the sutra did not date back to 704 and was later preserved in a stupa built during the unification of silla in 751.

However, the earliest known printed book of an average size was the diamond sutra published during the tang dynasty (618-907).

The scroll, which is 5.18 meters (17 feet) long and in scroll format, dates back to April 15 (868), the ninth lunar month of emperor yizong's reign.

The accounts of scholars Joseph Needham and Tsien tsuen-hsuin show that the calligraphy and carving techniques of the tang dynasty diamond sutra were far more advanced and sophisticated than the single-page Indian version of the doloni sutra,

which was printed earlier. In addition, the two oldest printed lunar calendar dates are 877 and 882, when they were discovered in dunhuang.

那女的发明者其实就是因国人，他们跟我们一样，最开始是没有语言交流的，慢慢慢慢，然后说出来就有了文字发音和语言

英语起源于早期的日尔曼语,后来居住在岛上的凯尔特人,央格鲁萨克逊人逐渐改变了它的语法,诺曼征服后法国人又丰富了它的词汇,所以英语不是一个民族创造的语言,更形象地说,它是欧洲各种语言混合的大杂烩。

四大发明英文是“The Four Great Inventions”。

1、造纸术papermaking technology

发明时期于汉朝西汉时期，改进时期于汉朝东汉时期。

2、指南针compass

代叫司南，主要组成部分是一根装在轴上的磁针，磁针在天然地磁场的作用下可以自由转动并保持在磁子午线的切线方向上，磁针的南极指向地理南极(磁场北极)，利用这一性能可以辨别方向。

2、火药gunpowder

火药是中国四大发明之一。是在适当的外界能量作用下，自身能进行迅速而有规律的燃烧，同时生成大量高温燃气的物质。在军事上主要用作枪弹、炮弹的发射药和火箭、导弹的推进剂及其他驱动装置的能源，是弹药的重要组成部分。

4、印刷术printing

印刷术是中国古代劳动人民的四大发明之一。雕版印刷术发明于唐朝，并在唐朝中后期普遍使用。宋仁宗时毕升发明了活字印刷术标志着活字印刷术的诞生。

四大发明的历史意义：

1、造纸术的发明：为人类提供了经济﹑便利的书写材料，掀起一场人类文字载体革命；

2、雕版印刷术的发明：大大促进了文化的传播；

3、指南针的发明：为欧洲航海家的航海活动，提供了条件；

4、火药武器的发明：火药武器的使用，改变了作战方式，帮助欧洲资产阶级摧毁了封建堡垒，加速了欧洲的历史进程。