Chapter 91: Papermaking Ice-Making Method

ith its deliciousness!Especially when Zhao Fugui boasted that this was food passed down by immortals, it received even greater praise. For a time, everyone was talking about the magic of tofu.Having c...The proportion of gunpowder is not best, only the most suitable.Increasing the proportion of saltpeter makes it more flammable; increasing the proportion of sulfur increases the explosive power.But ac...