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He does blown glass work, makes these amusing "Klein bottles." In my case, I am looking for a particular style of hourglass.
by at_a_remove 7y ago
He does blown glass work, makes these amusing "Klein bottles." In my case, I am looking for a particular style of hourglass.
- dayofthedaleks 7y agoOkay, thanks. Was aware of the Klein bottles, but wasn't making the connection. Thought it might refer to some sort of intellectual practice.