"Relative dating compares layers of rock or sediment to determine whether one layer is older or younger than another. Absolute dating is like stating your age in years. Relative dating is like saying that you are older than your. Above: A scientist takes a sample from a human thighbone thought to date from the Middle Ages."
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.