Two and a half million cars worth of gypsum, you know, CO2 generated. Right?

Spray drying is a method of producing a dry powder from a liquid or slurry by rapidly drying with a hot gas.

For gravity settling, this means that the particles will tend to fall to the bottom of the vessel, forming a slurry at the vessel base.

Iraq, for instance, is now plunged in darkness after it had built a nuclear reactor in the 80s. They are now using a local invention and have returned to building homes out of gypsum instead of cement so that they could adapt to their environment.