Dividing the day into uniform segments (not necessarily hours) using the movement of shadows to measure the passage of time is a concept that was apparently discovered early in history. A recent discovery of an ancient sundial in Egypt bears this out.
http://www.livescience.com/28057-ancient-egyptian-sundial-discovered.html
-
This topic was modified 10 years, 10 months ago by
Bernard Nebel.
-
This topic was modified 10 years, 10 months ago by
Bernard Nebel.
-
This topic was modified 8 years, 5 months ago by
Bernard Nebel.