Tornado Alley (PROG)

[Zorax]

...and another hour into Fehmi's pyramid video he talks about the Khufu kings tomb. There is no question that the tomb is unbelievably constructed perfectly of smooth granite. But Fehmi shows them pouring molten granite into molds, yet makes no mention what material the molds are made out of to support huge blocks of molten rock. He sort of forgot to explain this problem.

But it's all cool otherwise. Not sure if our present civilization will solve such an amazing ancient mystery.