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A comment on The Art of Mathematics in Chalk.

Re:The Art of Mathematics in Chalk by divbzero on Saturday April 24, 2021 @03:30PM (#26927630)
Reminds me of the story of Hagoromo shutting down their chalk business several years ago. Previous HN discussions from 2015 and 2019. [1] [2]

[1]: https://news.ycombinator.com/item?id=9770017 "Hagoromo president explains why he closed down his beloved chalk business"

[2]: https://news.ycombinator.com/item?id=20237878 "The Chalk Market: Where Mathematicians Go to Get the Good Stuff"

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Re:The Art of Mathematics in Chalk by endgame on Saturday April 24, 2021 @05:45PM (#26928439)
Hagoromo changed hands after those articles, and now runs from South Korea, I think. An Amazon review says it's no longer the Rolls Royce of chalk, but more like a "really dope Lexus".
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Re:The Art of Mathematics in Chalk by kkylin on Saturday April 24, 2021 @07:43PM (#26929174)
I have never used the old chalk, but the new ones are plenty good IMO, and certainly significantly better than any standard-issue chalk anywhere. Everyone I know who still has a blackboard has a private stash of Hagoromo in their office.
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