Title: Thomas Edison and the developers of electromagnetism
Subjects: History, Electrical engineers, Research, Electric engineering, Electric engineers, Electrical engineering, Electromagnetism, Juvenile literature, Biography, Inventors, Edison, thomas a. (thomas alva), 1847-1931, Edison, thomas a. (thomas alva), 1847-1931, juvenile literature, Engineers, Engineers, juvenile literature, Inventors, juvenile literature, Electromagnetism, juvenile literature
Places: United States
People: Thomas A. Edison (1847-1931)