regular octahedron

diagram

random

Alien: The Secret Doctrine & Simon Deering’s Auto Destruct Panel (alienexplorations.blogspot.com) Ridley Scott said to Simon Deering “make some nice buttons, complicated and interesting because they wont be on screen for more than a second or two”

regular of

octahedron

tags

Platonic solid

Wikidata

https://www.wikidata.org/wiki/Q12557050

Wikipedia

Regular octahedron (Wikipedia) A regular octahedron is an octahedron that is a regular polyhedron. All the faces of a regular octahedron are equilateral triangles of the same size, and exactly four triangles meet at each vertex. A regular octahedron is convex, meaning that for any two points within it, the line segment connecting them lies entirely within it.