"The water then is passed through grains of carbon that has been "activated" - superheated so that vast numbers of tiny pores are opened up to trap particles that might remain in the water. It's like punching millions of additional holes in a block of Swiss cheese, said Daniel Olson of Arcadis U.S. Inc., the project engineer."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.