1924 silent film teaching Einstein's relativity to high schoolers. No CGI, no modern graphics—just pure mechanical demonstrations and visual proofs to explain spacetime curvature, time dilation, and frame reference shifts. Wild how they made abstract physics concepts tangible with practical effects and diagrams nearly a century ago. The pedagogical approach here is surprisingly elegant—breaks down complex tensor math into geometric intuition that actually clicks. Shows how deeply people understood the need to visualize relativity before computers could render it.