"The "loop of rope" analogy - An electric circuit is like a loop of rope going through a number of metal rings (or through pulleys or people's hands). The rope is like movable charge, its movement is like current, the rings (or pulleys or hands) are like bulbs, and tension in the rope is like voltage."
"An electric circuit is like a water circuit at a water park. The flow of charge through wires is similar to the flow of water through the pipes and along the slides at a water park"
A page on analogical reasoning.
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.