Wheres Toto Posted April 24, 2023 Share Posted April 24, 2023 9 hours ago, Emba said: I assume that different brands might use different ratios of pigments to make up the blue/black and this they would look different when broken down and spread by the water or alcohol. Yep, this. Most black pens are actually various mixes of blues, purples, maybe even some orange and red. Ink chromatography is a pretty standard activity in most CSI/Forensic classes. 4 Quote Link to comment Share on other sites More sharing options...
Miss Tick Posted April 24, 2023 Share Posted April 24, 2023 2 hours ago, Wheres Toto said: Yep, this. Most black pens are actually various mixes of blues, purples, maybe even some orange and red. Ink chromatography is a pretty standard activity in most CSI/Forensic classes. That's what made me think the entire scenario was just a set up to raise interest in the students. It worked, though! Difficult to replicate that scenario as a homeschooler, our foray into Ink Chromatography was much less thrilling. 1 Quote Link to comment Share on other sites More sharing options...
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wintermom Posted April 24, 2023 Share Posted April 24, 2023 I'd be annoyed, too. 😅 6 Quote Link to comment Share on other sites More sharing options...
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Katy Posted April 25, 2023 Author Share Posted April 25, 2023 (edited) I googled, this is true and recent Edited April 25, 2023 by Katy 14 3 Quote Link to comment Share on other sites More sharing options...
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Faith-manor Posted April 25, 2023 Share Posted April 25, 2023 10 hours ago, Katy said: I'm the coon!!!! It makes Mark insane. I have to tell him to back off. 3 Quote Link to comment Share on other sites More sharing options...
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Faith-manor Posted April 25, 2023 Share Posted April 25, 2023 14 minutes ago, Katy said: Not wrong! 2 Quote Link to comment Share on other sites More sharing options...
Katy Posted April 25, 2023 Author Share Posted April 25, 2023 Edited out a picture of Tom Cruise maniacally laughing. 3 3 Quote Link to comment Share on other sites More sharing options...
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