We keep looking for an unknown agent but we must look at the fact:

Dr. Myron MacLain used an experimental Steel alloy and Vibranium; He did numerous test using different setting and combination (amount of components, different pressures and temperatures) all of them were obviously recorded. During one of those tests he fall asleep while waiting for the metal to "heat up".

So what was responsible for the Proto-Adamantium formation since we know all the main component of the shield?

page from the comic

  • 9
    It was, um, unknown. Commented Mar 17, 2015 at 14:21
  • @LightnessRaceswithMonica Donald Rumsfeld? Is that you?
    – Darren
    Commented Oct 30, 2019 at 9:34
  • 2
    @Darren That is a known unknown. You know? Commented Oct 30, 2019 at 11:34

1 Answer 1

  • Answer:

The fact is that Marvel set what allowed the Proto-Adamantium to exist a total unknown. It is a mystery and will probably stay that way. We can only speculate on what was this unknown factor.

  • “the true secret behind the Proto-Adamantium was never published and probably never will” — you do know that comics aren’t documentaries, right? Commented Mar 16, 2015 at 9:29
  • 2
    Generally speaking we don't like speculative answers on this site; your answer is reasonable and seems valid but it would benefit from some more direct references from the source material.
    – KutuluMike
    Commented Mar 16, 2015 at 13:26
  • I am with Michael on this. You need some basis for your assertion, whether it's evidence from the comics, a comment from one of the people who worked on the series, or an appeal to metallurgical principles. That said, it's a good start at an answer.
    – FuzzyBoots
    Commented Mar 16, 2015 at 13:34
  • @PaulD.Waite I know, English isn't my native language and published was the most suitable words at that time.
    – Xainfinen
    Commented Mar 17, 2015 at 5:59
  • @MichaelEdenfield My reasoning directly from what as been said in the comics. The fact is the answer was never given to us by marvel. At which point does a theory is accepted as answer? I'll do my best to put more details.
    – Xainfinen
    Commented Mar 17, 2015 at 6:55

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