History of SundialsSundial Facts

What is the Equation of Time?

By February 8, 2017June 17th, 2020No Comments

The Equation of Time is the one part of sundial theory that people always ask me about. As you’d expect, as a sundial maker, I’m comfortable with it, but I do struggle trying to explain it coherently and – to be honest – I also sometimes struggle understanding all its intricacies myself!

I often direct people to Kevin Karney’s very comprehensive explanation, which can be seen on the website here, but this is quite high brow and I fear that getting to grips with it is beyond most of us lesser mortals.

So, it was with delight that I came across this brilliant YouTube video by Michael Stevens of Vsauce. Michael goes through the reasoning and history of the Equation of Time using witty explanations and some very cool graphics, making it easy for anyone to understand.

Vsauce YouTube channel features videos relating to various scientific, psychological, mathematical, and philosophical topics, as well as gaming, technology, culture, and other topics of general interest. Vsauce currently has 11.5 million subscribers!

Don’t forget that we publish the Equation of Time every day on Border Sundials, Facebook and Twitter pages. So even if you can’t get your head around the maths, you can still use our posts to set up and read your sundial accurately.