After simply greeting the old tavern lady, Michelle walked into the basement once again, an idea growing in her mind. If she could find a way to lower the atmospheric pressure within the tavern, it could create wind from the basement, which would bring out the humid air.
And then it would be easy to get it out of the tavern. One would just need to close the basement so it wouldn't fall back there, and then just open windows, creating small wind currents within the building.
But the method had one big loophole. Michelle didn't have a clue as to how she could lower the pressure.
So she thought back to her old world, and what was known there about pressure. Particularly about the factors affecting it. Altitude, temperature, humidity, and gravitation would be the most important.
The relations between the factors and atmospheric pressure were the following: The higher the altitude or temperature, the lower the pressure. The higher the humidity or gravity, the higher the pressure.
