The answer is in understanding the Thom Pi unit discovered by using the Aubrey circle it is not difficult.
The perimeter is fixed but the diameter is a variable.
897.6 / (1760/560) = 285.60
897.6 / (1632/520) = 286.00
difference is 0.4 units and this is a sliding Pi scale against the two versions of Pi being used
the shorter the daimeter the greater the value for pi so 22/7 is greater than real pi and 1632/520 is less than real Pi and somewhere in between is real Pi and the sliding scale is in my previous analysis.
You can have any number of values for pi by varying 0.4 but for example making it 1000 by x 2500.
A fixed known circumference and a variable diameter where two different values one on each side of Pi have been established.
897.6 / 285.8 = 3.140657803 the in between value
285.7142857 the diameter giving 3.1416.
It is a pi location system.
using this system i located the value of pi that works with the Harris and Stockdale megalithic foot and it is 3.142666667 a diameter of 285.6173101
3.1426666r x 3 = 9.428 and square is 9.876353778 getting very close to 9.87654321 a beautiful Egyptian number as 3.125 x 256/81.
this version is exactly 16499/16500 x 22/7 Egyptian numbers.
No one has bothered about the Harris abd Stockdale megalithic foot but they should be ( Harry Sivertsen excluded he has written about it)
I doff my cap to Peter Harris and his 40 years of research in all weathers in the English country side and beyond and his phenomenal little book.
and magisterchessmut too!!
just noticed on this thread
'As an addendum to this inquiry of the application of Pi values to areas instead of circumferences, I would like to point out that the first mentioned derivative of the MY at 272.25, being 1/8th of the Old Scottish bushel unit of 2178 cu/ins., does factor into an equivalent 2/1 ratio to 385. Or very nearly so as, 385sq./272.25sq. x 9801/9800 = 2. '
Edited 3 time(s). Last edit at 28-Jun-18 11:11 by DavidK.