Porosity and permeability are two of the primary factors that control the movement and storage of fluids in rocks and sediments. They are intrinsic characteristics of these geologic materials. The exploitation of natural resources, such as groundwater...

In soil science, permeable is a qualitative description for the ease with which water or some other fluid can pass through soil. Permeability in this context is a function not only of the total pore volume but also of the size and distribution of the...

A measure of the ability of a granular material to allow water...

In the earth sciences, permeability (commonly symbolized as κ, or k) is a measure of the ability of a material (typically, a rock or unconsolidated material) to transmit fluids. It is of great importance in determining the flow characteristics of...

With the recent summer flooding around the country, drainage issues are back in the news. But we should not forget that rainwater is also an important resource and encourage its use in more sustainable ways. Concrete block permeable paving offers a solution to both...

1. Is poetry, should it be, "political"? The question, for me, evaporates once it's acknowledged that poetic imagination or intuition is never merely unto-itself, free-floating, or self-enclosed. It's radical, meaning, root-tangled in the grit of human arrangements and relationships: how we are with...