Intrigued by wanting to tell time accurately by looking at sun’s position, I built the following after browsing the internet.
If you know all exceptone of these, you can tell the value of the missing one:
- Longitude
-Latitude
- time (Summer or Winter)
- north-south direction
- date
- levelness (spirit level)
Normally you would use it to tell time of course. Brass versions of this apparatus were used to tell time accurately until radio was invented to transmit an accurate time signal to the rest of the world.
