作业帮写一篇钢笔的英文历史 100词左右
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写一篇钢笔的英文历史 100词左右
写一篇钢笔的英文历史 100词左右
写一篇钢笔的英文历史 100词左右
Pen is now widely used in writing instruments,it was invented in the early 19th century.1809,the United Kingdom issued the first patent on the water pen,marking pen was born.
In the early water pen,ink can not flow freely.People who write about the piston pressure,the ink began to flow,after a while they get pressure to write about,otherwise the ink Liu Buchu come.This word,of course,started writing very easy.
1829 times British James Lee successfully developed a pen tip.It is specially processed,smooth and elastic,writing is pretty smooth,very welcome.However,this pen dipped in ink to be very troublesome.
By 1884,the United States an insurance company employee called Waterman,invented a method of using capillary ink supply,the better to solve the above problem.The pen tip of the brush can be unloaded,with a small ink dropper injection.
The first to make their own ink absorption appeared in the early 20th century pen and take a piston to suck the ink.When the pen in gall bladder with the skin,it has to use an iron to squeeze into a gap of skin to absorb the ink lamps.By 1952,there was a pipe inserted into the ink-absorbent Shinuokeer pen.Until 1956,only invented the now commonly used in capillary pen.Now there are some art pens and so on.