How a Crystal Ball Works
The crystal ball is a magnificent piece of technology. Much of the visual effects of the crystal ball can be explained by the science of optics. The crystal ball has a certain refractive index, and as a result, omnidirectional images from within and on the surface of the ball.
When you are using a crystal ball you are scrying. This is an act of clairvoyance and divination. Scrying is the act of seeing into an object to detect some kind of supernatural vision. It just so happens that the crystal ball is the perfect tool for this gazing act.
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