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<p>[QUOTE=&quot;kaparthy, post: 3441394, member: 57463&quot;]It is true that the ancients believed that the Earth is a sphere and had reasons for that.&nbsp; HOWEVER ...&nbsp; it is not true that the fact that a ship&#039;s mast disappears over the horizon last or appears first was one of those. That was offered much later, perhaps only in the 15th century.&nbsp; </p><p><br /></p><p>It is true that Eratosthenes <b>managed</b> the measurement of Earth&#039;s circumference. It is probably not true that he did the work. It is most likely that he ordered it done by others working for him at the Library (Museum). See <i>Circumference</i> by Nicholas Nicastro (reviewed <a href="https://necessaryfacts.blogspot.com/2013/12/circumference.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://necessaryfacts.blogspot.com/2013/12/circumference.html" rel="nofollow">here)</a>.</p><p><br /></p><p>Aside from the Flat Earth Society, it is unlikely that many people thought the Earth to be flat from about the Hellenistic era forward.&nbsp; If you consider your own primary experience, it is easy to believe that Earth is flat and the center of the universe.&nbsp; So, do not denigrate the Egyptians, Sumerians, Chinese, or whoever before the matter was actually considered and explored. </p><p><br /></p><p>And consider, moreover, the <b>centuries</b> between Pythagoras and Erathosthenes. In one century, we still have not unified quantum mechanics and the electrodynamics of moving bodies (&quot;relativity&quot;). </p><p><br /></p><p>Finally, if I may, just when do you think that it was <b>scientifically proved</b> that the Earth orbits the Sun -- or that the Earth spins and not the universe around the Earth?&nbsp; (And relativistically, as there is no preferred frame of reference, you do realize that the sun does, indeed, &quot;go around&quot; the Earth, right?)[/QUOTE]</p><p><br /></p>

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