How much light is too much?
A mage has created an amulet of light. It shines light from one side, and the user is capable of controlling the color and intensity of that light.
In an effort to avoid abuse, the mage has limited the amulet to only produce wavelengths in the visible range.
Perhaps less cleverly, they did not think to put a limit on the amount of light that can be produced at once.
A foolish thief has gotten their hands on the amulet and started cranking up the intensity. At what point will their actions start to cause noticeable physical effects, and what will those effects be?
My guess is that, at some point, objects will become hot enough to catch fire, radiation pressure will start pushing objects (and the amulet) around, and light will shine through normally opaque objects. Are these guesses correct, and are there any other dangers my thief should be wary of?
Bonus: Are some wavelengths of visible light safer than others? Which are they?
This post was sourced from https://worldbuilding.stackexchange.com/q/139921. It is licensed under CC BY-SA 4.0.
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