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<div>Hi all:</div>
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<div>See: book citation below:</div>
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<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Montag, 12. Oktober 2015 um 23:42 Uhr<br/>
<b>Von:</b> "Mark, Martin van der" <martin.van.der.mark@philips.com><br/>
<b>An:</b> "Nature of Light and Particles - General Discussion" <general@lists.natureoflightandparticles.org><br/>
<b>Cc:</b> "'Nick Bailey'" <nick@bailey-family.org.uk>, "'Anthony Booth'" <abooth@ieee.org>, "'Ariane Mandray'" <ariane.mandray@wanadoo.fr>, "'ARNOLD BENN'" <arniebenn@mac.com><br/>
<b>Betreff:</b> Re: [General] nature of light particles & theories</div>
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<p class="MsoNormal"><span style="font-size: 11.0pt;font-family: Calibri , sans-serif;color: rgb(31,73,125);">Dear John D,</span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt;font-family: Calibri , sans-serif;color: rgb(31,73,125);">Indeed, perspective, this was the main conclusion from a set of extensive discussions about the meaning of relativity I held with Phil Butler when I was I New Zealand working at Canterbury University in Christ Church a few years ago. As humans we are very used to coping with the projections of 3D space we perceive, but we only learned how to deal with it in drawings and paintings some 500 hundred years ago. They key point to it is called perspective. Your example of the small man (in the distance) seeing me as a small man (at the same distance) is great, thank you, it is priceless. In relativity this concept is extended to time as well (slow clock for fast man sees slow clock of other fast man). It is all a matter of perspective, much more than most physicist even think it is. The apparent shortening and rotation of fast objects is another example of perspective, as is looking around corners of fast getaway cars to see the gunman firing at you (if you know that example at all).</span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt;font-family: Calibri , sans-serif;color: rgb(31,73,125);">It is time for a proper book: Perspective in relativity. It may exist already….</span></p>
<p class="MsoNormal">AK: In this regard, one might try: D. E. Liebscher, "Einsteins Relativitätstheorie und die Geometrien der Ebene" (Tubener, Leipzig, 99) ISBN: 3-519-00278-7. There is a translation into English: D. E. L. "The Geometry of Time" , Wiley-VCH, Weiheim, 05), ISBN: 978-3-527-40567-1. (The translator appears not to have been a native English speaker/translator, nor a professional physicist. Looks OK at first, but I found it hard to follow, although I'm a native English spearker. Gave up and turned to the German version, which is clear with conventional physics terminology.)</p>
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<p class="MsoNormal">---Regards, Al</p>
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<p class="MsoNormal"><span style="font-size: 11.0pt;font-family: Calibri , sans-serif;color: rgb(31,73,125);">Very best regards, Martin</span></p>
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<p class="MsoNormal" style="margin-bottom: 0.0cm;"><span style="font-size: 10.0pt;font-family: Arial , sans-serif;color: navy;">Dr. Martin B. van der Mark</span></p>
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