"Parallax is like if you extend your arm, and stick out your thumb, and close one eye, and then close only the other eye, its apparent position against the background changes."
"To understand what it means to be on the same focal plane, imagine a needle speedometer in a car. If you are sitting in the passenger seat, the needle will appear to show a different speed than the car is actually traveling because of the angle of view. Adjusting parallax is like moving from the passenger seat into the driver's seat and giving you a clear view. This allows you to bring the reticle into focus with the target."
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.