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Katherine Johnson was a mathematician who calculated the flight paths for many missions during her more than three decades with NASA
The Fowl Towel gets it right: 31 species of ducks
revealing the museum skeletons of prehistoric creatures that once inhabited our world
Viscoelastic Bubbles and Chewy Molecules
Bring the charm of the Audubon Bird American Robin into your life
Tiny Circuits! Outdoor Katherine Johnson was a mathematician
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