The blue of the sky…

In August 1787, Genevan naturalist Horace Bénédict de Saussure climbed Mont Blanc with the aim of answering a seemingly childish question: why is the sky blue?

Swiss National Museum - Swiss history blog

Original cyanometer on display at the Science History Museum in Geneva.

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A cyanometer is a scientific instrument from the 17th century made for measuring the blueness of the sky. Two years ago I decided to develop a digital version of the historical device.

Cyanometer: https://www.thomasweibel.ch/cyanometer/

Read more: https://hack.glam.opendata.ch/project/213

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Some fellow mastodonians suggested I made my altimeter web app work globally. I did.

https://www.thomasweibel.ch/alt/

Now, all you testers out there: Does it work in your location? Is it accurate? Suggestions?

#geography #gis #topography #opendata #ogd #geodata #opensource #openglam #glamhack #digitalhumanities #webdev #webapp #html #javascript #swisstopo @spatialists @OpendataCH @geomob @clolsonus @JensWiesehahn @paulfoerster