Sand to Make A Fool of Me
I had been reading the NY Times and I came across an article that completely blew my mind: https://www.nytimes.com/2020/11/09/science/what-makes-sand-soft.html — it was about sand. Apparently, this seemingly simple, everyday substance poses one of the deepest challenges to physics, so much so that despite the efforts of some of science’s greatest minds, there exists no ‘general theory of sand’. Even in a closed system, like an hourglass, where you know the shape…