I accidentally fell down a deep rabbit hole while trying to figure out how pH meters work. I thought this would be a really nice simple example of a scientific instrument, suitable for didactic explanation as part of an exposition of the failures of logical positivism. FAIL
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uhhh dyeing
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update: churched-up litmus paper seems to read a full point to two points high but Lessons Were Learned
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Hey I found some wild Indigo growing near my house. Can this be used to make dye?
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yes you simply need gloves, a mask, eye protection, an outdoor location, a non-reactive vat & jar, soda ash, dye reducer, an almost fanatical devotion to doing everything the hard way,
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^^ this exchange *kisses fingers* delightfully on brand
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