## Thursday, 4 February 2016

41) “Similar calculations made from the Cape of Good Hope, South Africa to Melbourne, Australia at an average latitude of 35.5 degrees South, have given an approximate figure of over 25,000 miles, which is again equal to or greater than the Earth’s supposed greatest circumference at the equator. Calculations from Sydney, Australia to Wellington, New Zealand at an average of 37.5 degrees South have given an approximate circumference of 25,500 miles, greater still! According to the ball-Earth theory, the circumference of the Earth at 37.5 degrees Southern latitude should be only 19,757 statute miles, almost six thousand miles less than such practical measurements.”

Let's do the same thing wrong, again.

Are you in the mood to check their calculations again? I'm not. It seems pointless.

Let's do one check, though. They state that ``According to the ball-Earth theory, the circumference of the Earth at 37.5 degrees Southern Latitude should be only 19757 statute miles, almost six thousand miles less than such practical measurements.''

Geocentric radius is rather easy to calculate. It is a function of geodetic latitude. I put it in matlab with the 37.5o, just to check their claim of it being 19757 statute miles (31796 km). The radius calculated was 6370.3 km and the circumference was 40025 km, or 25000 miles. For 35.5o south, it was 6371 km radius and 40030 km circumference. That's the 25000 miles that they are yelling about it isn't.

I'm confused - is it so hard to find these formula on Wikipedia?”

"False claim & incomprehension of the model

The distance between Cape Horn and Port Philip is roundabout 9130 km or 5675 miles or 4930 sm or 82°. And 360°*9130km/82° is how much? Right, roundabout 40,000 km.

Same problem as in #39: The true angular distance between two places is not their difference in longitude (except when both lie exactly on the equator).

As stated above, this value of 143° is false for more than one reason (since Cape Horn and Port Philip are not on the same latitude either) and will give you false results if you take it as a reference for distance measurement on a sphere.”