At a website far far away a comment abou the Giza pyramid
The following astronomical math has popped up and I'm not in the know about this so any comments on its validity would be appreciated!
.....In my wanderings and studies I chanced upon studying the tilt of the Earth's axis and related topics and then I noted a line at Giza which I thought should go 45 degrees and then it hit me. Why do the pyramids face North ?
That is to say why do they hit North of the present day ?
They were built a minimum of 4500 years ago? ... Should they not hit North of that era ?
Using calculations that translates to the shift:
41000 = 1.5 degrees (24 - 22.5 agreed maximum and minimum tilt)
This is a cycle so divide by 2
1 yr = 1.5 / 20,500
4500 yrs = 4500 x (1.5 / 20,500)
4500 yrs = 0.08 degree = 28.8 minutes ( I think my math is correct)
However apparently the pyramids are only 5 minutes off due North and even this Petrie writes is very noticeable.
Why is the deviation not 28.8 minutes ?