Thomas Weibel23h ago

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

@OpendataCH @geomob #openglam #glamhack #history #sciencehistory #digitalhumanities #opendata #geoinformatics #geodata

Show threadThomas Weibel

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

@OpendataCH @geomob #openglam #glamhack #history #sciencehistory #digitalhumanities #opendata #geoinformatics #geodata

Jun 22 at 8:03amWeb
Show threadThomas Weibel17h ago

Even more background: https://blog.nationalmuseum.ch/en/2022/08/blue-sky-de-saussure/

@OpendataCH @geomob #openglam #glamhack #history #sciencehistory #digitalhumanities #opendata #geoinformatics #geodata

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
Show threadrhempel14h ago
@thomasweibel @OpendataCH @geomob This was all very interesting until the end when the author may have confused speed with frequency.