samhill wrote:OK, then maybe they used huge hydraulic presses to create heat & bond dry mix together, that might work.
samhill wrote:: Marvin the Martian was his name & blowing up Earth to get a better view of Venus was his game.
Pacowy wrote:So are you saying those blocks weren't made from portland cement and coal ash? Where did the space dude put their ash pile? I don't think archeologists have found any trace of that.