Einstein’s E=mc² Equation on a Classic Chalkboard #1530663 (License: Personal Use)

A classic wooden-framed green chalkboard features the iconic equation E=mc² in thick, textured white chalk. A realistic piece of chalk rests diagonally on the lower-right ledge, adding authenticity to the educational scene. The composition evokes nostalgia for traditional science teaching while emphasizing foundational physics concepts.

Used in educational websites, physics lesson pages, science blog posts, or institutional landing pages targeting students, teachers, or science enthusiasts seeking visual reinforcement of relativity theory.