Fan Xiaofan placed the disassembled pen and pencil together, and suddenly her eyes lit up.
What if there were a way, a clever design, to keep the lead cartridge inside the casing, like fountain pen ink, so it would be used up little by little?
As if struck by inspiration, she took a blank sheet of paper and quickly began drawing lines on it, then made revisions.
In fact, some of these structures have existed in China for a long time, but they are not widely used in daily life. This problem can be solved by using ballistic ejectors and funnel-shaped guides.
After finishing with the pencil, Fan Xiaofan naturally wouldn't let the fountain pen go. Since the fountain pen uses sliding friction to write, she recalled the pens used by the people of Country D and discovered that they used the rolling friction of the hand.
But since it involves rolling friction, unlike a fountain pen, how can we ensure the ink is used just right?
She kept drawing her ideas on paper, rejecting them because they were not feasible, and constantly trying new ideas.
She discovered that the principle of rolling friction is feasible, but its controllability is difficult to achieve. Can China produce small round beads that meet the requirements?
Attaching a rotating metal ball to the top of the pen allows ink to flow from it at a controlled rate, but finding the optimal state is not easy.
President Xu and others have always supported Fan Xiaofan's research, after all, the young girl has brought them surprises time and time again. However, the textile factories in Qingcheng cannot produce such precise parts that Fan Xiaofan is currently working on, but watch factories, which produce small parts, might be able to make it possible.
But the thought of having to take such a long train ride to S City made Fan Xiaofan feel a little sad...
I really want to sing that line...
Where has the time gone?
"They used it all for train travel..."
Moreover, in winter, trains are even slower due to various problems, and there may even be instances of service being suspended. Therefore, this matter cannot be rushed, and Fan Xiaofan plans to make the trip in the spring.
On this day, Fan Xiaofan, who had always lived a monotonous life between her office and home and was unwilling to go out, was forced to leave the house.
Shi Lingheng sent her a letter, asking her to go to Ruan Jiu's courtyard. Would someone so immersed in warmth be willing to go out at this time?
Fan Xiaofan said he absolutely did not want to!
The formidable bigwig even added a line at the end: "It's time for Fu Weidong to come and train."
Damn it, this is a threat. Although I have tried my best to take good care of the little dumpling after we got together, her constitution is still relatively weak. Going out in the dead of winter, a five-year-old dumpling, only five years old, is there such a cruel option?
In the end, Fan Xiaofan decided to sacrifice himself.
She is truly a wonderful and touching older sister.
When Shi Lingheng saw Fan Xiaofan at Ruan Jiu's residence, he suspected that she was a ball that had rolled in through the front door, round and smooth.
Ruan Jiu leaned against the door, watching Ling Heng's twitching lips, and couldn't help but click her tongue: "Pretty interesting..."
Shi Lingheng had already come to his senses. Seeing that Fan Xiaofan couldn't steady herself, he helped her up. When Fan Xiaofan looked up, she saw Ruan Jiu looking at Shi Lingheng with a half-smile. Instantly, the coldness disappeared, and she couldn't help but want to scream. Going out for a trip seemed like a good idea. She could see the live bonus version.
Ruan Jiu was wearing a black trench coat today. He seems to have a preference for black, making him a prime example of prioritizing style over warmth, because it really is cold right now...
Shi Lingheng, on the other hand, was dressed in a thick cotton-padded coat, appearing quite casual...
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