Antibiótico y fuelle: qué tienen en común

1. Paso 1. Antibiótico — funciona como — Sulfonamidas. The first mass-market antibacterial drugs were synthetic sulfonamides; penicillin was discovered earlier (1928) but went into production later.
2. Paso 2. Sulfonamidas — evolucionó de — Tinte sintético. Prontosil was a red dye.
3. Paso 3. Tinte sintético — está hecho de — Carbón. Aniline from coal tar.
4. Paso 4. Carbón — es material para — Coque. Coke is baked coal.
5. Paso 5. Coque — se utiliza en — Alto horno. The fuel and reducing agent is coke (formerly charcoal).
6. Paso 6. Alto horno — tiene como parte — Fuelle. Air was blown in by bellows, later by blowers.

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