Lena Blackburne and the secret mud that changed baseball
Kelly, David A
2013
The story of Lena Blackburne and his Baseball Rubbing Mud, which major league teams (and many other teams) use to take the shine off brand-new baseballs.
Describes inventor Margaret E. Knight's childhood, explaining how her interest in mechanical innovations began, and tells the story of her invention of a paper bag maker and her legal battle for the patent after someone stole her idea.
Describes the scientists behind the two most commonly used temperature scales, and explains how their scientific research and innovations are still used today.