Hi Spiros,

Spiros wrote:Here the perimeter is multiplied by 43,200 ( the number of seconds in 12 hours).
But this equation is not very accurate.

That it is not very accurate is true. But coincidentally if one were to employ the Sarcophagus cubit of G2 [www.ronaldbirdsall.com] (equal to one-fifth Petrie's G2 mean sarcophagus length 103 17/25 inches, 8.64 feet) is employed in conjunction with the Socket Base perimeter. 43,200 x 1760 = 76,032,000 (G2 Sarcophagus cubits) yields Earth mean circumference, being exactly 24883.2 statute miles. Giving the Earth mean radius of 3958 38/55 statute miles, which is within 6/55 statute mile of NASA current figure for Earth Radius. [solarsystem.nasa.gov] And coincidentally, according to Petrie's measurements, Earth Radius in statute miles divided by 9 is equal to the number of cubits found in G1 South side casing base length of 439 + 1/2 + 1/4 + 1/10 + 1/220 (439 47/55) cubits.