9 “Engineer, W. Winckler was published in the Earth Review regarding the Earth’s supposed curvature, stating, “As an engineer of many years standing, I saw that this absurd allowance is only permitted in school books. No engineer would dream of allowing anything of the kind. I have projected many miles of railways and many more of canals and the allowance has not even been thought of, much less allowed for. This allowance for curvature means this - that it is 8” for the first mile of a canal, and increasing at the ratio by the square of the distance in miles; thus a small navigable canal for boats, say 30 miles long, will have, by the above rule an allowance for curvature of 600 feet. Think of that and then please credit engineers as not being quite such fools. Nothing of the sort is allowed. We no more think of allowing 600 feet for a line of 30 miles of railway or canal, than of wasting our time trying to square the circle."
Edit: Thanks to Tom Harris who has tracked down the source - see his comment below. As he says, the quote just shows an enormous ignorance about engineering .
For many examples showing that engineers did indeed take the curvature into account as a matter of course, in Winckler's time and today, have a look at this:
Where and when was this published and who and where was the supposed “Earth review” published?
Because nobody can find it. For the substance of the claim, see point 8 above – as so often the “200” “proofs” actually repeat themselves – same claim, in different word, and demonstrably wrong in each case.
As Daimonie says:
“So, let's go back to the surveyors (Point 7). These guys here are the ones that tell you what the distance is. And they.. account for the curvature. Look in the second link, the table; for 60 km you're talking about a 243m correction.
Who do you think sets out the lines and similar required things for the construction workers? Surveyors, again.
Basically, what is said here in this quote is something like this. I am Mr. Winckler, and I used to design large-distance connections. I never really bothered with checking the data provided by surveyors, and never really figured out that they had already accounted for the curvature. Also, I heard this thing about squaring circles or not doing it, anyway, the point is that it sounds fancy.“