C242 Burning Sand

Burning sand!

This was a concept that baffled everyone present.

Why burn the sand swirling in the sky?

Could sand even catch fire?

Yet, Shen Wuyou had long been preparing for this very moment.

What was the purpose of burning sand?

To create glass, of course!

The primary ingredients of glass include silica sand, sodium carbonate, potassium carbonate, lime, and other materials