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A Cyanometer and a Cloud Colourimeter
It is Spring in the Northern Hemisphere. The lovely blues of the sky inspired me to post a DIY cyanometer as the project for this week.
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Or read this on Hacker NewsGet the latest tech news
It is Spring in the Northern Hemisphere. The lovely blues of the sky inspired me to post a DIY cyanometer as the project for this week.
None
Or read this on Hacker News