this post was submitted on 02 Jul 2025
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History Memes

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Useless white metal, nothing will ever come of it (lemmy.world)
submitted 2 months ago by PugJesus@lemmy.world to c/historymemes@lemmy.world
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[–] Hugin@lemmy.world 22 points 2 months ago (1 children)

For example the Catalytic converter in gas cars usually use platinum as the catalyst. They brake down carbon monoxide and various nitrogen oxides.

[–] Mac@mander.xyz 5 points 2 months ago* (last edited 2 months ago) (1 children)

Yes, because the carbon monoxide and various nitrogen oxides are usually travelling at grate speeds and must be slowed.

[–] acockworkorange@mander.xyz 4 points 2 months ago

Otherwise they'd be grated?