<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hello Martin, John W and all,<div class=""><br class=""></div><div class="">I just received a reply from Dutch physicist Hans Montanus, a pioneer in Euclidean relativity, which is relevant to our discussions of particles composed of photon-like objects. It follows below:</div><div class=""><br class=""></div><div class=""><div class=""><br class=""></div><div class="">Dear Richard,</div><div class=""><br class=""></div><div class="">Thanks for your email. </div><div class=""><br class=""></div><div class="">Your `simplified relativity’ (referring to “Relativity Simplified” at <a href="https://richardgauthier.academia.edu/research" class="">https://richardgauthier.academia.edu/research</a> - Richard ) indeed is very similar to my approach. My initial motivation was not to simplify relativity. Around 1986 I got the insight that something was terribly wrong with the basic concept of time in relativity. In short: the proper time of an object should be regarded as its fourth dimension and the proper time of an observer is just a parameter (keeping track of the order of events). Afterwards, it turned out to be a simplification of relativity (euclidean distances instead of minkowskian, goniometric motion instead of hyperbolic motion, SO4 instead of Lorentz groups, etc.). Some of my papers that might interest you are: </div><div class=""><br class=""></div><div class=""><a href="https://link.springer.com/article/10.1023/A:1012274211780" class="">https://link.springer.com/article/10.1023/A:1012274211780</a></div><div class=""><br class=""></div><div class=""><a href="https://physicsessays.org/browse-journal-2/product/669-9-hans-montanus-a-new-concept-of-time.html" class="">https://physicsessays.org/browse-journal-2/product/669-9-hans-montanus-a-new-concept-of-time.html</a></div><div class=""><br class=""></div><div class=""><a href="https://link.springer.com/article/10.1007/s10701-005-6482-0" class="">https://link.springer.com/article/10.1007/s10701-005-6482-0</a></div><div class=""><br class=""></div><div class=""><a href="http://aip.scitation.org/doi/10.1063/1.2219157" class="">http://aip.scitation.org/doi/10.1063/1.2219157</a></div><div class=""><br class=""></div><div class="">In particular the first one is recommended. The second one is about Compton scattering with a massive photon. In the latter two it is shown that results from general relativity (curved space) can also be obtained in a flat euclidean space.</div><div class=""><br class=""></div><div class="">I have to admit that I have been ignorant of your work and of papers cited therein (referring to <a href="https://richardgauthier.academia.edu/research" class="">https://richardgauthier.academia.edu/research</a> - Richard ) . So, i am very pleased with your email. For instance, I am interested in your attempts to model an electron with a circling photon. In your paper you cite a paper of Williamson and van der Mark about toroidal photon model for the electron. That paper is very interesting too. </div><div class="">By the way, it happens that I have met Martin van der Mark before: around 1985 or 1986 I worked as a master student on the same department as he was working as a phd student (but I doubt if he will remember me). </div><div class="">For all the photon models for the electron, always the question raises to me: how can photon be radiated of from an accelerating electron. If the electron is a circling (or double circling in the toroidal model) photon, then it rather is a photon radiated off from an accelerating (the circling photon as a whole) photon. Similarly, pair creation would mean two circling photons coming off from a single (usual, non circling) photon. Do you know if there are models for such processes?</div><div class=""><br class=""></div><div class="">Best wishes, Hans</div></div></body></html>