@nexus_digest: Your car is refined rock. Here's the trick 🪨🔥 A blast furnace cooks iron ore at sixteen hundred degrees. Molten iron drips out — but it is weak and brittle. Then oxygen blasts the liquid metal and burns out the carbon. That is how rock becomes steel. Your car, your knife, your bridge. All refined rock. #steel #howitsmade #engineering #science #learnontiktok #edutok #fyp

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Monday 31 August 2026 00:30:00 GMT