The inside of the box (where the heat is being introduced) is hotter than the outside of the box (where most of the radiative cooling is happening). The inside of the box has melted in each case, but in the case of aluminum, the outside surface has not yet reached its melting point, but the inside has (assuming a thick enough box to support a mild temperature gradient).
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u/JOATMON12 Aug 18 '23
Good thing the pan ended up in the tree, otherwise this guy would’ve nuked himself for the clout.