Lines on Plastic Cups Are Not For What You Think

There are certain designs in the world that we’re so used to, that we hardly ever question why they’re created the way they are. You know, like those lines on solo cups. In fact, their purpose is to measure the drinks. In this video I'm gonna explain, how. Various subtle design quirks are actually there for a reason and serve some purpose. And I’m pretty sure many of them will leave you pleasantly surprised.