This is an 18th century instrument designed to measure the blueness of the sky called a Cyanometer. The simple device was invented in 1789 by Swiss physicist Horace-Bénédict de Saussure and German naturalist Alexander von Humboldt who used the circular array of 53 shaded sections in experiments above the skies over Geneva, Chamonix and Mont Blanc. The Cyanometer helped lead to a successful conclusion that the blueness of the sky is a measure of transparency caused by the amount of water vapor in the atmosphere. You can learn more about it at the Royal Society of Chemistry.
The Cyanometer – a 225 year old tool for measuring the blueness of the sky
- R:evolution 3.0 – Festival of Ideas 11 May, 2016
- Hypnotic 3D paper patterns by Maud Vantours 19 April, 2016
- The year of the emoji 15 December, 2015
- The ampersand colouring book 5 November, 2015
- Content aware typography 23 August, 2015
- FreedMan Chair assembly video 8 May, 2015
- PaperLater 20 June, 2014
- Geometric Paper Birds 3 June, 2014
Subscribe to our newsletter
Aviary Creative Communications is a brand and digital agency based in London. We have over 12 years of experience in creating, refreshing and maintaining brands, designing and developing websites, and working with our clients to bring ideas to life.
We work with all types of companies ranging from individuals, start-ups, charities, and larger corporations.
Email us: firstname.lastname@example.org
Tel: 020 8144 5230