2021-11-25 Golden Rhombohedron (Obtuse), Ten-point Star
Go to this link for the piece of art
https://www.experienceadelaide.com.au/public-art/golden-rhombohedron-obtuse/
Outside the Central Market, Grote St,
Adelaide, since 2021
Jason Sims, the artist, called this
Golden Rhombohedron (Obtuse).
Another name of this interesting geometric object is Obtuse Golden Rhombic-hexahedron (OGR)
These mathematical or geometric terms seems intimidating, right?
Let's start with the easiest part
Hexa - six
Hedron - faces
Rhombo=rhombic=rhombus
A rhombus is a skewed square keeping its all sides parallel and of equal length.
Similarly a Rhombohedron is a skewed cube, with all six faces the same rhombic look, parallel in pairs.
What is a Golden Rhombus?
This is the wonderful part related to the Golden Ratio or the Fibonacci number....
My craft (not a piece of art) in 2019 is simply called a "Ten Point Star" as it is made of 10 OGR, inspired by the angle between two faces of an OGR - 36 degrees.
Background music: Rescue Crew (Video Editor, Win10)
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