New answers tagged

1

IIRC China went to blast furnaces with waterwheels and windmills to power bellows very, very early. I don't know much about metallurgy but I do know ceramics, and their high-T furnaces were hollowed out earth mounds or hillsides that generated really powerful draughts as well as having excellent efficiency and top temperatures. They were able to produce tens ...


Top 50 recent answers are included