What is this thing?

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[solved] Springy thingy found outside (infosec.pub)

submitted 3 weeks ago* (last edited 3 weeks ago) by whaleross@lemmy.world to c/whatisthisthing@lemmy.world

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It looks like some sort of wiring inside

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[–] Successful_Try543@feddit.org 1 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

As iron, unlike gold isn't a noble metal, an important aspect is, you need carbon to make ~~pure~~ iron from the iron oxides in the iron ore: The carbon will react with the oxygen and ~~pure~~ elementary iron and carbon oxides are left.

[–] threelonmusketeers@sh.itjust.works 1 points 3 weeks ago (1 children)

Pure iron is somewhat soft. To make steel, you typically add extra carbon to the iron, which results in a harder (though more brittle) metal.

[–] Successful_Try543@feddit.org 2 points 3 weeks ago* (last edited 3 weeks ago)

Essentially, you reduce the carbon content of the raw iron by blowing in oxygen until you have the desired amount of carbon left. I should have written 'elementary' iron instead of pure.