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A comment on Chalk-manship: how to draw dotted lines on chalkboards, MIT style. Parent comment

Re:Chalk-manship: how to draw dotted lines on chalkboards, M... by grishka on Thursday March 30, 2023 @08:59AM (#35371957)
I vaguely remember some pieces of chalk in my school having paper wrappers on them. Those were a bit less messy.
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