[specular] The Eye of Horus is specular to the Eye of Ra

I had never heard the term [specular] before, but when I looked up what the
"Eye of Horus" is, the first Wikipedia sentence casually employs the word.

"The Eye of Horus, also known as left wedjat eye or udjat eye, [specular]
to the Eye of Ra (right wedjat eye), is a concept and symbol in ancient
Egyptian religion that represents well-being, healing, and protection. "
https://en.wikipedia.org/wiki/Eye_of_Horus

https://www.merriam-webster.com/dictionary/specular
of, relating to, or having the qualities of a mirror

Etymology
Latin specularis of a mirror, from speculum

It's not exactly a mirror image, but not far from a mirror image either.

Le 26/04/2024 à 05:38, Ken Blake a écrit :
>
> [specular] The Eye of Horus is specular to the Eye of Ra
>
> I had never heard the term [specular] before, but when I looked up what the
> "Eye of Horus" is, the first Wikipedia sentence casually employs the word.
>
> "The Eye of Horus, also known as left wedjat eye or udjat eye, [specular]
> to the Eye of Ra (right wedjat eye), is a concept and symbol in ancient
> Egyptian religion that represents well-being, healing, and protection. "
> https://en.wikipedia.org/wiki/Eye_of_Horus
>
> https://www.merriam-webster.com/dictionary/specular
> of, relating to, or having the qualities of a mirror
>
> Etymology
> Latin specularis of a mirror, from speculum
>
> It's not exactly a mirror image, but not far from a mirror image either.

It's been a while since I've heard the word 'specular', though 'specular
reflection' is a common enough term in physics and photography - for
reflections from glass, water, etc.. These can be controlled with a
polarising filter, e.g.:

<https://1.img-dpreview.com/files/p/E~TS590x0~articles/2448036020/polarizingfilter_feat.jpeg>