Oskar Klein

Oskar Klein was a physicist known for his work in theoretical physics, particularly in exploring ideas beyond ordinary three-dimensional space. He proposed that our universe might have tiny, extra spatial dimensions curled up so small they are undetectable, similar to how a thin wire appears one-dimensional from afar but reveals its two-dimensional shape upon closer inspection. This idea helped develop theories like Kaluza-Klein theory, aiming to unify gravity with electromagnetism. Klein's work contributed to the foundation of modern string theory, which seeks a comprehensive understanding of the universe's fundamental forces.