Salmon Sperm

Researchers have found that rare earth metals bind well to phosphate containing molecules. Salmon sper so known as milt ferm is regularly discarded by the tons thanks to fish inganaswein. Researchers created a milt powder, added it a solution containing rare metals, and then dunked the mixture into an acid bath.

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[Trivia Question]

Minnesota paper waste ball

https://www.pca.state.mn.us/featured/worlds-largest-wad-paper-0

[Fact Off]

Palimpsests (reusing parchment, but also documenting microbes)

https://www.abaa.org/blog/post/the-history-of-vellum-and-parchment

https://www.theatlantic.com/technology/archive/2014/07/how-monks-remixed-technology-in-the-middle-ages/373956/

http://www.archimedespalimpsest.org/about/imaging/