Create a 16:9 science magazine or university poster anchored by the word [Scientific Concept]. Build each letter from the molecular structures, atomic bonds, or physical diagrams associated with that concept. For DNA, form letters from double-helix ladder rungs and backbone curves. For CARBON, build letters from benzene-ring hexagons and bond lines. For GRAVITY, curve and stretch letters as if pulled toward a point mass, with lower strokes elongated by gravitational lensing. Keep the word fully readable. Use a scientific whiteboard aesthetic with white chalk or marker on a dark ground, or blueprint blue with white diagrammatic linework. Lighting is flat, even, and academic, as if projected on a lecture screen. Avoid photorealistic molecular renders, 3D shading, standard color-coded atoms, and realistic laboratory imagery. Output aspect ratio: 16:9.