# Golden Rectangle Icosahedron

A little while ago I came across this

If you take 3 golden-mean rectangles, intersecting on three different planes, you wind up with a perfect icosahedron… a 20 sided Platonic Solid.

Cool..

So there you go. The ratios of the sides of each rectangle is exactly the same as the ratios between the adjacent joints of your fingers, and the height to the length of the hypotenuse of the great pyramid at Giza and the design of Stradivarius violins. It never fails to amaze me how interlinked seemingly disparate objects are.

## Wake me up when it’s 2020

Okay, it's 2020 now I guess. [br]I've been making Golden Mean Calipers for about 10 years now. [br]In 2019 I wrote 2 blog posts... that's not enough to achieve the various purposes of writing blog posts, among which are: [br]- to learn what you think [br]- to show people you're still alive [br]- to show google (et al) you're still…

## Golden Mean Caliper Comparison Chart

I thought it might be useful for people to be able to compare all the calipers on the one page, so I made a comparison chart. CaliperDescriptionSmallest measurementLargest measurementPrice (USD)Most often used by Small Calipers 120mm or 4.5" high - smallest of the 3-armed calipers 9.5mm or .37" 189mm or 7.5" \$35 Beauticians Artists working with detail, or smaller pieces…

## Demo of Golden Ratio in Artistic Composition (fairly disorganised)

Over the years, I've built up a collection of Golden Ratio Calipers... and I decided it might be quite useful for people if I made a video comparing them. Some of them are really good - some terrible. So I set up my camera... and found that my video-space looked a bit bare... needed a painting. So I decided to…

## Why The Golden Ratio Works For Flowers

Fairly amazing video going into the maths of why flowers (and pine-cones, relative leaf positions etc) are so often based fibonacci numbers. https://www.youtube.com/watch?v=sj8Sg8qnjOg And it's fairly amazing because I actually understood it. It's been a loooong time since I tangled with quadratic equations, but (on the 2nd watch) this did actually make sense to me. I always thought that with…