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Use of small holes in ballpoint caps
The small hole at the end of the ballpoint pen is designed to be safe for the user, but its true effect is still controversial.
Ballpoint Pen
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Articles about Ballpoint Pen
5 published items.
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For the first time in history, China has produced its own ballpoint pen
For China, this is one
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Chemical components of blue ballpoint pen ink
Blue ball pen ink includes dye, fatty acid and alcohol to ensure uniform ink, quick drying and paper sticking.
Science Events
60 years ballpoint pen
This week 60 years ago, people sold the first ballpoint pen in the world. Now people live without computers and advanced electronic equipment, but no one forgets the inv…
New technology
Ballpoint pen can read and speak
What do you think of a pen that can read what your child writes and plays back through a speaker? That is the new product launched in the US Leapfrog week.