Colored chalk

Chalk worth hoarding

I enjoyed this story about how mathematicians have been hoarding Hagoromo chalk because it’s apparently such amazing chalk. I remember boxes of cheap chalk from my school years. Clearly this chalk is in a different league altogether.

unsplash-logoFeatured image by Daniel Watson

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2 responses to “Chalk worth hoarding

  1. David Bennett avatar

    Lovely 🙂

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