After years of research, China has finally figured out how to make ballpoint pensPeter Farquhar
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Marcel Bich在他的工厂生产圆珠笔。故选C。(5)A.推理判断题。根据第四段By 1965,ballpoint pens were available worldwide.可知到1965年,...
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 History of the Ballpoint Hungarian journalist Laszlo Biro was well aware of the problems with normal pens. Biro believed that the idea of a pen using a quick-drying ink instead of India ink came to him while visiting anewspaper. The newspaper's ink left the paper dr...
Ballpoint Pens, Frontline Pizza: With Jeff Wilburn. How do they make some world's smoothest writing ballpoint pens that don't leak or fade? And, how do they make pizza for soldiers on the frontline?
Aluminum is also used in some cases to make the pen body, and stainless steel can be used to make pen components. Precious metals such as gold, silver, or platinum are plated onto more expensive pens. The ink can be specially made by the pen manufacturer. To be useful in a ballpoint ...
The Battle of the Ballpoint Pens A lot of improvements were made to pens in general over the years, leading to a battle over the rights to Biro's invention. The newly-formed Eterpen Company in Argentina commercialized the Biro pen after the Biro brothers received their patents there. The pr...
On this episode of Shopify Masters, you’ll learn how Caroline Weaver manages to make a profit selling pencils online.
Until recently, your only option would have been to read back your notes and type in the information (that is, write it out all over again)—but now there's a better solution: the digital pen. Digital pens look like fatter versions of ordinary pens. Packed with electronic circuits, ...
翻译短文 (初1)Pen In old times,Chinses wrote with writing burushes;Europeans with quill pens.Today people often use pens,ballpoint pens and fountain pens.How about "a lively pen"?Well,"a lively pen" refers to a vivid style of writing. Then,a f