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Re:Iron Fuel Shows Its Mettle by marcosdumay on Friday June 23, 2023 @12:29PM (#36449120)
> once they get out they should still rust in some relatively short period of time

Nanoparticles of iron oxide are already rust.

There is certainly some inorganic phenomenon that will turn it into normal, aggregated rust. It probably requires water and some time.

But those particles sound like the kind of thing that will stay for years on the atmosphere, and contaminate every living thing. And yeah, they are probably safe in some surprisingly large amount, so whatever direction it goes, we will only know after we start doing it.

Re:Iron Fuel Shows Its Mettle by mrguyorama on Friday June 23, 2023 @04:48PM (#36451997)
Maybe then we could stop putting iron filings in children's cereal as a supplement.