[member="Lily Kuhn"]
So than were the doors only an inch thick, versus the foot length, the metal would have taken the same amount of time penetrate?
...illogical and impossible.
Fun experiment. Get to sizes of copper wire. One a foot in diameter, one an inch. Heat. Watch as it takes longer for one to heat properly than the other. Class, can we guess which took longer?
Ok, cheaper experiment. Go to the dollar store. Buy a brand new pack of cardboard color paper (that ultra thick stuff used to be arts and craftsy. Never knew what its actually called) and a same size amount of lined paper. Get a box cutter. Cut as hard as possible through both, going from the top of both the vertical and length. Which cuts easier? This explains that though both are paper, made from almost the same materials, one is simply harder to cut.
Aka, while yes, they do not compare over all, they do in some ways. A foot thick of blast door, took a few seconds to cut through, while a few inches of Phrik would require the same time. A blast door of metal A of a foot thick, would take X time, while the same A metal in the shape of a three inch thick door, would melt like a toothbrush hit by a torch.