http://dagblog.com/seveneves-short-review-long-book-19646 Comments for "Seveneves: A Short Review of a Long Book" en http://dagblog.com/comment/208762#comment-208762 <a id="comment-208762"></a> <p><em>In reply to <a href="http://dagblog.com/comment/208761#comment-208761">Look forward to reading it.</a></em></p> <div class="field field-name-comment-body field-type-text-long field-label-hidden"><div class="field-items"><div class="field-item even"><p>This is why I love writing things at Dag.  Thanks, VA!</p> </div></div></div> Tue, 16 Jun 2015 13:28:16 +0000 Michael Maiello comment 208762 at http://dagblog.com http://dagblog.com/comment/208761#comment-208761 <a id="comment-208761"></a> <p><em>In reply to <a href="http://dagblog.com/seveneves-short-review-long-book-19646">Seveneves: A Short Review of a Long Book</a></em></p> <div class="field field-name-comment-body field-type-text-long field-label-hidden"><div class="field-items"><div class="field-item even"><p>Look forward to reading it. As for your density question, if one assumes (big assumption) a uniform distribution of matter than the gravitational pull of an object depends on the distance to that object and its mass. Its density is irrelevant, as long as you are not inside the object (and again as long as you assume a uniform distribution of matter). I would imagine that initially the approximation of the exploded moon having a uniform distribution of matter would depend on the nature of how it was exploded. Given that it takes two years before matter from the Moon starts hitting us, I'd guess it's not a bad approximation.</p> </div></div></div> Tue, 16 Jun 2015 13:25:51 +0000 Verified Atheist comment 208761 at http://dagblog.com