The term "James Franck" refers to a specific individual, not a common English word. Here’s a simple explanation for a new English learner:
James Franck was an important scientist from the United States who was born in Germany. He is known for working with another scientist named Gustav Hertz. Together, they did an important experiment with electrons (tiny particles that are part of atoms). Their work helped to prove a theory about how energy works in atoms, which was proposed by another scientist named Niels Bohr.
In advanced discussions, you might refer to specific experiments or theories related to James Franck, such as the Franck-Hertz experiment, which demonstrates quantum mechanics principles.
James Franck is a significant figure in the field of physics, known for his contributions to understanding atomic energy levels.