In addition, I very much enjoyed going through the rabbit hole of Japanese mechanical pencils, here is a short overview of some of the interesting (engineering)

In addition, I very much enjoyed going through the rabbit hole of Japanese mechanical pencils, here is a short overview of some of the interesting (engineering) features: https://paperwhisper.com/blogs/blog/write-smarter-the-hidden-tech-in-japanese-mechanical-pencils https://paperwhisper.com/blogs/blog/write-smarter-the-hidden...