Quote: "Starting with his back against the Tower of London, Norwood spent two devoted years marching 208 miles north to York, repeatedly stretching and measuring a length of chain as he went, all the while making the most meticulous adjustments for the rise and fall of the land and the meanderings of the road."
Question: How do we know that he didn't make a mistake? There are so many calculations he needed to make, so what if he is off by a couple miles?
Comment: I think that this is astounding what he did, I would never have the Patience to walk and measure that far. I also think its amazing that with all the technology we have nowadays that back in this time, to measure the length around the world they had to walk a section of it just to get an approximation reading.
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