van der waals
"van der Waals interactions are like mini ionic interactions. Instead of a whole magnetic pole interaction, it's a tiny fraction of one. But they add up."
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.