Cyanotype

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Invention

Domain

Science and technology

Knowledge cost

4

In collections

Nobody has pulled it yet.

What Wikipedia says

The cyanotype (from Ancient Greek: κυάνεος, kyáneos 'dark blue' and τύπος, týpos 'mark, impression, type') is a slow-reacting, photographic printing formulation sensitive to a limited near-ultraviolet and blue light spectrum, the range of 300 nm to 400 nm, known as UVA radiation.

Excerpt from the Wikipedia article “Cyanotype”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Atkins, Anna, 1799-1871, Public domain, via Wikimedia Commons.