2 ms·
It requires less surface area, both due to compressibility and due to hydrodynamics. Additionally, water is a strong erosion source, air is not, so this can ma
by tristor 5y ago
It requires less surface area, both due to compressibility and due to hydrodynamics. Additionally, water is a strong erosion source, air is not, so this can make use of existing excavations much easier and deep excavation is very very expensive.
- Murkin 5y agoBut they already fill the underground containers with water when there is low air pressure. (thats what the reservoir on top is, no?)