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		1970-01-01 on May 18, 2023 \| parent \| context \| favorite \| on: New proof finds the ‘ultimate instability’ in a so... How does one use a blackboard outside? What happens when your work day is going well but you have light rain in the afternoon?

kkylin on May 18, 2023 [–]

Take a picture and move to a blackboard inside.

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