Indigo und camera: was sie gemeinsam haben

1. Schritt 1. Indigo — entwickelte sich zu — Synthetic dye. Synthesizing natural dyes.
2. Schritt 2. Synthetic dye — wird verwendet in — Gram staining. Aniline dyes.
3. Schritt 3. Gram staining — nutzt — Microscope. For microscopy.
4. Schritt 4. Microscope — nutzt — Refraction of light. Magnification through refraction.
5. Schritt 5. Refraction of light — wird verwendet in — Camera obscura. A lens makes the image sharper; the camera obscura itself works because light travels in straight lines.
6. Schritt 6. Camera obscura — entwickelte sich zu — Camera. A camera is a camera obscura with a light-sensitive layer.

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