Placet (planet)
Encyclopedia
Placet is a fictional planet
Planet
A planet is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.The term planet is ancient, with ties to history, science,...

 that appeared in the Science Fiction
Science fiction
Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 story Placet is a Crazy Place by Fredric Brown
Fredric Brown
Fredric Brown was an American science fiction and mystery writer. He was born in Cincinnati.He had two sons: James Ross Brown and Linn Lewis Brown ....

.

Placet is composed of both ordinary and heavy matter. The core is made of the collapsed, heavy matter, giving the planet a gravity three-fourths that of Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

. Bird-like animals made of heavy matter fly through the earth above the heavy matter core.

Placet revolves faster than the speed of sound in a figure eight pattern around two stars, Argyle I and Argyle II. Argyle I is normal matter and Argyle II is contraterrene or negative matter. Half way between them is a field where light slows to the speed of sound. This field allows Placet to be able to eclipse
Eclipse
An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer...

 itself twice at the same time, run into itself every 40 hours and chase itself out of sight.

This field also affects the brains of human beings, resulting in extremely vivid visual hallucination
Hallucination
A hallucination, in the broadest sense of the word, is a perception in the absence of a stimulus. In a stricter sense, hallucinations are defined as perceptions in a conscious and awake state in the absence of external stimuli which have qualities of real perception, in that they are vivid,...

s. The sense of touch is unaffected by the hallucinations.
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