Pendulums

The Stela Of Tiya Ethiopia -->

Do these objects depict the tracking & timing of the stars using pendulums ?

Same thing in the American Southwest petroglyphs ?

What about at Kamyana Mohyla ? --->

COCHNO STONE, SCOTLAND -> 2016

"Harvey's 1880 sketch" - looks like Orion's Belt to me ...

go check out SGD's work on the PENDULUM -> 

check out Alan Butler -> https://www.youtube.com/watch?time_continue=2018&v=33dKFtCXEFA

In another book coauthored with English writer Christopher Knight & Butler wrote that 

the length of a pendulum giving 366 beats (or 183 periods) during one 366th of a day (which is approximately the time it takes to the Earth to spin one Megalithic degree) is one half-Megalithic Yard long. 

From that the authors suggested that such a pendulum could well have been used by these ancestral people to accurately reproduce the length of their yard.

Such a pendulum has never been discovered to this day. It should be noted, however, that in a book coauthored with Robert Lomas in 20017 in which the question of the Megalithic pendulum is discussed, Christopher Knight mentions the existence of what he calls ‘stone things’ (these are normally referred to as ‘carved stone balls’) from the Neolithic that have been found in numerous places of Scotland (more particularly in Skara Brae, cited by French author Sylvain Tristan as being located along the 60th Megalithic parallel -- see the section ‘Salt Lines’ below) and whose meaning is unclear, but that could have been pendulum weights.