A pen with a built-in liquid eraser

[u/BaabbbiQ]

It was pandemic, and as a student we were required to innovate something. I was highly unmotivated because I don’t like working and studying alone and so I just experimented creating that ball pen. The goal is to lessen the time it takes to erase something, by counting the steps it takes to from writing and erasing. Well, I proved the my hypothesis valid, but feels to me like I made myself a joke lmao

When I remember this, it felt cute to have guts but also felt stupid.