buffered water solution
"You can think of pure water as a very echoing room. Every small sound bounces around and sounds very loud. By contrast, a buffered water solution is like a room with all the floors and walls covered in carpet - small sounds get swallowed up by the carpet and are harder to notice, but you can still hear large sounds."
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.