Before the handy ballpoint, getting a few sentences onto paper was a pretty involved task. Find out how the ballpoint pen stores and manages its own ink supply to make writing a snap.
How Ballpoint Pens Work The Ink Ink is a fluid or paste that comes in a variety of colors -- usually black or dark blue -- used for writing and printing. It is composed of a pigment or dye dissolved or dispersed in a liquid called thevehicle. According toEncyclopedia Britannica, writing...
Because the tip of a normal ballpoint pen is so tiny, it is hard to visualize how the ball and socket actually work. One way to understand it clearly is to look at a bottle of roll-on anti-perspirant, which uses the same technology at a much larger scale! The typical container of ro...
Ballpoint pens can develop bits of clogged ink in the tip of the ink cartridge, causing the pen to stop writing. Ballpoint pens that have been stored and unused for long periods are more susceptible to clogging problems than those that are used daily. If you find a batch of old pens that...
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从下面各题所给选项中,选择最佳选项。 —How does the ballpoint pen work? —There was a tiny ball at the tip of the pen. The ball ___ ink into paper as it ___.`roll; move`, `rolled; moved`, `rolls; moves`, `rolling; moving`相关知识...
根据第三段Brio didn't invent the ballpoint pen but improved it.可知本段主要讲了Brio对圆珠笔的提升。故选C。(4)C.细节理解题。根据第四段Biro's ballpoint pen worked very well,but it wasn't successful until a French man called Marcel Bich began to produce it in his factory in 1950.可知...
While the idea of a ballpoint pen had been around for many years, it took three different inventors and almost 60 years to develop this modern writing instrument. The first patent for this invention was issued on October 30, 1888, to a man named John J. Loud. His ballpoint pen consisted...
Understanding Paths & the Pen Tool So what makes the Pen tool so confusing? Part of it is the name. When we think of pens, we think ballpoint, Pilot, or Bic. They are those things we cannot ever seem to find when we have to write down an address real quick, or take an important...
John .Loud used to work for a local newspaper.C. The first ballpoint pen in the world got a greatsuccess. 答案 【解析】答案:66.B67.A68.C69.C70.A解析:本题为阅读理解,主要讲述了圆珠笔的历史。66.根据题目关键词"Biro's fountain pen"定位答案在原文第二段。根据第二段"He had to fill it ...