If it's transparent, you've lost "color" control. But maybe some kind of radar/s... | Hacker News

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		lupire on Feb 14, 2021 \| parent \| context \| favorite \| on: 50 Years Ago, Sugar Industry Quietly Paid Scientis... If it's transparent, you've lost "color" control. But maybe some kind of radar/sonar-type response signature could work

throwmtlsPhD on Feb 14, 2021 [–]

It can be transparent in the visible spectrum.

But ya, the UV dyes are probably not very stable

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