![Michael Pemberton on X: "When I heard that an 80-year old Japanese chalk company went out of business in 2015 and that mathematicians were going as far as hoarding their chalk, I Michael Pemberton on X: "When I heard that an 80-year old Japanese chalk company went out of business in 2015 and that mathematicians were going as far as hoarding their chalk, I](https://pbs.twimg.com/media/FDn1ikcXoAEMquI.jpg)
Michael Pemberton on X: "When I heard that an 80-year old Japanese chalk company went out of business in 2015 and that mathematicians were going as far as hoarding their chalk, I
![Incunabula on X: ""Hagoromo Fulltouch Chalk was at the very pinnacle of the chalk world. According to Conrad, its semi-mythical status, which prompted it to be hoarded by mathematicians before the company Incunabula on X: ""Hagoromo Fulltouch Chalk was at the very pinnacle of the chalk world. According to Conrad, its semi-mythical status, which prompted it to be hoarded by mathematicians before the company](https://pbs.twimg.com/media/Ez8slvfXMAcw1H5.jpg)
Incunabula on X: ""Hagoromo Fulltouch Chalk was at the very pinnacle of the chalk world. According to Conrad, its semi-mythical status, which prompted it to be hoarded by mathematicians before the company
![Why the World's Best Mathematicians Are Hoarding Chalk « Adafruit Industries – Makers, hackers, artists, designers and engineers! Why the World's Best Mathematicians Are Hoarding Chalk « Adafruit Industries – Makers, hackers, artists, designers and engineers!](https://cdn-blog.adafruit.com/uploads/2019/05/why-the-worlds-best-mathematicia.jpg)
Why the World's Best Mathematicians Are Hoarding Chalk « Adafruit Industries – Makers, hackers, artists, designers and engineers!
![CNN on X: "Why are the world's best mathematicians are hoarding chalk? 🎧 LISTEN to this story on CNN's new podcast, Great Big Story: https://t.co/65gmSbNBDl READ: https://t.co/09e16lyW3D https://t.co/kZ154rMmVc" / X CNN on X: "Why are the world's best mathematicians are hoarding chalk? 🎧 LISTEN to this story on CNN's new podcast, Great Big Story: https://t.co/65gmSbNBDl READ: https://t.co/09e16lyW3D https://t.co/kZ154rMmVc" / X](https://pbs.twimg.com/media/EgC2vRiXgAAQb_w.jpg)