He would later repeat the experiment with the same results which he would eventually publish in his book Zetetic Astronomy: Earth Not a Globe. Parallax has just proven that the Earth was indeed flat.Īrmed with a simple telescope, measuring tape and a flag pole, Parallax successfully presented simple tangible evidence that the Earth was not round. Thus, at a distance of 6 miles, the 40 in high flagpole should no longer be visible from its starting point – and yet there it was. If that were true, Parallax suspected, the curvature of the planet would mean that line of sight would drop by a factor of 8 inches for every mile. The prevailing scientific consensus at the time concluded that the Earth was a globe with a 25,000 mi circumference. But even 6 miles away, he noted, the craft was entirely within sight of his telescope. He watched through his telescope as a small craft adorned with a 40 in high flag pole was pulled along a 6 mile length of the canal. In the summer of 1838, the British inventor Samuel Rowbotham - better known under his pseudonym, “Parallax” - stood in the shallow waters of a canal which cut straight across Cambridgeshire.
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