Why the World’s Best Mathematicians Are Hoarding Chalk

Once upon a time, not long ago, the math world fell in love ... with a chalk. But not just any chalk! This was Hagoromo: a Japanese brand so smooth, so perfect that some wondered if it was made from the tears of angels. Pencils down, please, as we tell the tale of a writing implement so irreplaceable, professors stockpiled it.

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+1 1. Judge-Jake commented 16 days ago

Gotta get some of that chalk....oh and perhaps better get a chalk board...and a board rubber.. and a reason to use it...Oh feck it can't be arsed. :D