Contents

Karl Benz The Boy Who Combined a Bike and a Train to Invent the Car 2

John Walker The Failed Doctor Who Sparked an Idea 10

Mary The Alchemist The Woman to Thank if You Like Chocolate 19

Garrett Morgan The Man in the Burning House 26

Gregorio Zara The Boy Who Lost His Chance but Got It Back 35

Ada Byron Lovelace The Unloved Teenager and the Giant Calculator 43

Tu Youyou The Scientist and the Secret in the Ancient Book 51

Balamurali Ambati and Sho Timothy Yano The lmpossibly Young

Doctors 58

Blaise Pascal The Motherless Child Who Solved His Father��s Problem 64

Rachel Carson The Girl Torn Between Two Careers 72 Ŀ �

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