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The Color of the Future: A history of blue
A history of blue 🦋
There, in a freezing desert, the wretched of the earth work themselves to an early grave breaking apart the rocks of Badakhshan to mine a few hundred kilograms per year of blue stone - the only lapis lazuli production in the known world. The details of the story are not totally ascertained, but it seems that his intended mix of cochineal insects, ferric sulfate, and potash had been tainted by another substance, perhaps bone oil from the alchemist Johann Konrad Dippel. The story of how we produce light is a fun one, spanning all of our technological history and involving dozens of solutions, from prehistoric oil lamps to candles to coal gas to cold-cathode tubes.
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