The main chemical used is called Silver Nitrate, and here we see it poured over a piece of plain, old, regular glass, pretty much instantaneously making it into a mirror.
There is something wholly surreal about watching a huge piece of glass get turned into a massive mirror using only a simple chemical wash with one ingredient.
I know what you’re thinking, right now. If I poured Silver Nitrate over myself or one of my younger siblings, would we then become MIRROR MEN, the greatest crime fighters the world ever saw? No, the answer to that question is no. Please do NOT pour Silver Nitrate all over yourself, it won’t end well for you.
But if you are interested, there is also a cool lesson on how to do this to glass yourself right here.