Alexander Graham Bell was best known for his invention of the telephone, revolutionizing communication as we know it. Bell began problem-solving as a young child and at the age of 12 designed his first invention, a device to remove husks from wheat grain. As an adult, he became a professor at Boston University, teaching Vocal Physiology and Mechanics of Speech.

Marie Daly was the first black woman to receive her doctorate in chemistry. Her work included studies on cholesterol, sugars, and proteins. She advocated for women and minorities to pursue medical careers and graduate from science programs.

Mario Molina was a Mexican chemist who played a pivotal role in the discovery of the Antarctic ozone hole and was a co-recipient of the 1995 Nobel Prize in Chemistry for his role in discovering the threat to the Earth's ozone layer from chlorofluorocarbon gases. Later in his career, he was a climate policy advisor to the President of Mexico.

Jane Goodall studied chimpanzees by immersing herself in their communities as a neighbor. Her discovery in 1960 that chimpanzees make and use tools is considered one of the greatest achievements of twentieth-century scholarship. Her life's work has also centered around conservation efforts to protect forests and the wildlife that live within them.