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Next time you set up a reflux reaction in your lab or kitchen, spare a thought for the equellum: the original recirculating reactor. equellum
When you picture an ancient laboratory, you likely imagine glass beakers, copper stills, and bubbling flasks. But for centuries, one of the most critical tools on the workbench was a small, unassuming device called an (plural: Equella ). Enjoyed this deep dive into a forgotten tool