Design

The Cyanometer: A Tool to Measure the Sky’s Blueness

Invented by Swiss scientist Horace-Bénédict de Saussure in the 18th century, the circular chart contains 52 shades of blue. Inspired by his love for the Alps, especially Mont Blanc, Saussure climbed to great heights to study the deeper blue skies at higher altitudes.

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What a cool tool!
Where does one acquire a cyanometer? And what do people often do with their sky color measurements?

ATL raised. 🐦‍🔥 // Design, music, coffee, bikes, community. //
Designing at @decentdao

I agree! However, at this point its a relic from the past. I gather someone could take modern colour swatch cards and fan them out to create a similar effect. 
What they do with those measurements its subjective to the person doing them.