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Gardens of Dust

Alexander Parry Lady Science
Just as household bacteriologists used kitchen experiments to instruct ordinary Americans about germs, so too can we reproduce these experiments to let students discover the complexities of turn-of-the-century germ theory for themselves.

A Conductor of Evolution’s Subtle Symphony

Stephanie Bucklin Quanta
At first, the biologist Richard Lenski thought his long-term experiment on evolution might last for 2,000 generations. Nearly three decades and over 65,000 generations later, he’s still amazed by evolution’s “awesome inventiveness.”
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