Question: User: Create a 30-second educational 3D animation comparing falling objects in air and in a vacuum. Show two tall transparent chambers side by side, labeled “Air” and “Vacuum.” Place an identical feather and steel ball at the same height inside each chamber. Release all four objects simultaneously. In the air chamber, the ball falls quickly while the feather drifts down slowly. In the vacuum chamber, the feather and ball accelerate together and reach the floor simultaneously. Replay the vacuum drop in slow motion so viewers can clearly see that both objects remain at the same height throughout the fall. Narration should explain that air resistance slows the feather, while gravity gives both objects the same acceleration when air resistance is absent. Use realistic materials, clear lighting, a steady camera, and accurate movement. No extra labels or decorative effects.