"While ethylene is like natural gas, propylene handling and logistics are almost identical to LPG. At room temperature, propylene has to be kept in a pressurized..."
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.