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:Those are interesting calculations, but please don't add them to the article because they look like [[WP:original research]]. Also, they don't take into account lots of other factors at work in influencing the earth-moon system and the rotation of the earth. You might also have noticed that the slowing of the earth's rotation is not constant and not currently predictable. [[User:Dbfirs|''<font face="verdana"><font color="blue">D</font><font color="#00ccff">b</font><font color="#44ffcc">f</font><font color="66ff66">i</font><font color="44ee44">r</font><font color="44aa44">s</font></font>'']] 09:43, 28 February 2016 (UTC)
"Bouguer wrote in a 1749 paper that they had been able to detect a deflection of 8 seconds of arc, The accuracy was not enough for a definite estimate on the mean density of the Earth, but Bouguer stated that it was at least sufficient to prove that the Earth was not hollow.[15]
Bouguer's work led to an estimate[by whom?][year needed] that is two to three times larger than the true mass of Earth.[16][not in citation given]"
I was a little irritated reading this bit in the article.. why is someone criticizing the author by adding "[by whom?]" and "[year needed] when both were CLEARLY stated in the previous sentence of the same entry and would have read robotic instead of as proper English (grammatically speaking) Please go back to 5th grade English class before adding things that are nothing but useless criticism, there are actually those of us who read the entries rather than use them as a mechanism to criticize others. thank you [[Special:Contributions/204.195.20.28|204.195.20.28]] ([[User talk:204.195.20.28|talk]]) 05:23, 7 June 2018 (UTC)
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