Dissolving Metal Watch Crown Stem With Alum Powder

Описание к видео Dissolving Metal Watch Crown Stem With Alum Powder

In this brief clip, we do some science! Ooooooh exciting stuff.
I have a winding crown with a stem snapped flush inside it and it's a hard to replace one so I read that I can dissolve it with this magical science y stuff, take a look.

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