<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Physics Group —<div class=""><br class=""></div><div class=""><div class=""><br class=""></div><div class="">I’m attaching a 4 page article explaining gravity in terms of simple spacetime expansion.</div><div class="">Instead of focussing on Time Dilation, it follows Feynman’s point in his gravity lectures that <i class="">rulers</i> are changing length too. The results clarify and easily explain several gravitational laws that Time Dilation does not.</div><div class=""><br class=""></div><div style="" class="">It makes reference to a more detailed article at Medium:</div><div style="" class=""><div style="margin: 0px; line-height: normal; -webkit-text-stroke-color: rgb(0, 0, 0); -webkit-text-stroke-width: initial;" class=""><span style="text-decoration: underline ; font-kerning: none" class=""><a href="https://medium.com/@davidlevitt/space-itself-is-expanding-gravity-and-general-relativity-explained-6395aa2e4d69" class="">Space Itself is Expanding — Gravity and General Relativity Explained</a></span></div></div><div style="margin: 0px; line-height: normal; -webkit-text-stroke-color: rgb(0, 0, 0); -webkit-text-stroke-width: initial;" class="">Ruud refers to that paper on his site, and to an earlier paper <span style="-webkit-text-stroke-width: initial; text-decoration: underline; -webkit-font-kerning: none;" class=""><a href="https://www.facebook.com/notes/david-levitt/how-gravity-works/10150094704334913/" class="">How Gravity Works</a></span><span style="-webkit-text-stroke-width: initial;" class=""> in his Mind Blowing Gravitation book.</span></div><div style="margin: 0px; line-height: normal; -webkit-text-stroke-color: rgb(0, 0, 0); -webkit-text-stroke-width: initial;" class="">Thanks again, Ruud!</div><div style="margin: 0px; line-height: normal; -webkit-text-stroke-color: rgb(0, 0, 0); -webkit-text-stroke-width: initial; font-size: 11px;" class=""><br class=""></div><div style="margin: 0px; line-height: normal; -webkit-text-stroke-color: rgb(0, 0, 0); -webkit-text-stroke-width: initial;" class="">I didn’t realize this community existed until recently, and I think it’s sufficiently exciting that I refer to it in the article.</div><div style="margin: 0px; line-height: normal; -webkit-text-stroke-color: rgb(0, 0, 0); -webkit-text-stroke-width: initial;" class="">I’m eager for your feedback.</div><div class=""><br class=""></div><div class="">Warm regards,</div><div class="">Dr. David Levitt, MIT ScD. </div><div class="">I was a student of Prof. Marvin Minsky, founder of the Artificial Intelligence field.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""></div></div></body></html>