บท 498: Chapter 495 Earth Online: Iron Age

2Fe2O3 + 3C in a high-temperature environment will produce 4Fe + 3CO2.

This equation is the key to Bi Fang's iron smelting; meanwhile, the sulfur content in the ash can accelerate the liquefaction of metal and lower the temperature required for iron smelting.

High heat and charcoal increase the temperature, while ash lowers the required temperature, combining these two tactics to successfully produce quality iron.

[WHAT THE **!]

[Why can't I understand a thing?]

If domestic audiences can still grasp it, the international audience is completely baffled.

These things, how come they've never heard of them before?

Did they even go to school?

[Why do I feel like I've never learned this?]

[The education in Huaxia is terrifying!]

[I remember we also taught this, you guys must not have paid attention in class...]

[Went off to play basketball.]

[I might have been in a relationship then.]