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Lab work can be a lot like cooking. You have to follow directions to measure, mix, and heat different chemicals to the right temperature to get the desired result.
In the early 1880s, Angelina Fanny Hesse – assistant, scientific illustrator, and wife of scientist Walther Hesse – made the isolation of bacteria possible by suggesting they use agar-agar for a Petri dish. When it worked, her husband was given the credit and her contribution was left out of the history books.
