"Longitudinal Wave - a longitudinal wave is like a sound wave in air, where the pulse travels parallel to the direction of disturbance.
Transverse Wave - a transverse wave is like a leaf floating in a lake. When a wave comes, the leaf goes up and then back down. So a transverse wave is where the motion is perpendicular to the direction of disturbance."
"A transverse wave is like holding 2 ends of a rope & moving it up & down. The movement of the rope will be perpendicular to the direction the motion started in.
A longitudinal wave is like holding 2 ends of a slinky & pulling it. The movement of the slinky will be parallel to the direction the motion started in."
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.