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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Non-Mainstream and Controversial Science
Has Geocentrism become less popular?
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<blockquote data-quote="Astrophile" data-source="post: 77389939" data-attributes="member: 338099"><p>No, you have misunderstood the situation. If there were two galaxies, in opposite directions as seen from the Earth, both receding at 1/4 the speed of light, from either of those two galaxies the other would be receding at about half the speed of light, and our galaxy (the Milky Way) would be receding at 1/4 the speed of light.</p><p></p><p>If the two galaxies were each receding from the Milky Way at 3/4 of the speed of light, from either of these two galaxies the other would be receding at more than 3/4 of the speed of light. You would need to understand relativistic cosmology to be able to calculate the apparent recession speed of one galaxy relative to the other.</p></blockquote><p></p>
[QUOTE="Astrophile, post: 77389939, member: 338099"] No, you have misunderstood the situation. If there were two galaxies, in opposite directions as seen from the Earth, both receding at 1/4 the speed of light, from either of those two galaxies the other would be receding at about half the speed of light, and our galaxy (the Milky Way) would be receding at 1/4 the speed of light. If the two galaxies were each receding from the Milky Way at 3/4 of the speed of light, from either of these two galaxies the other would be receding at more than 3/4 of the speed of light. You would need to understand relativistic cosmology to be able to calculate the apparent recession speed of one galaxy relative to the other. [/QUOTE]
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Has Geocentrism become less popular?
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