hydrophobic interaction
"As an analogy, charged or electrostatic interactions are like those between a man and a woman--opposites attract. Non-polar or hydrophobic interactions are like those between two Americans of either gender in a third world country. Their dissimilarities from people of a very different cultural background act as a bond between them. Notice that the interaction is dependent on context, i.e., a surrounding environment that is very."
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.