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Path: ...!npeer.as286.net!dummy01.as286.net!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer02.ams4!peer.am4.highwinds-media.com!news.highwinds-media.com!feeder2.feed.ams11.usenet.farm!feed.usenet.farm!2.eu.feeder.erje.net!feeder.erje.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Don <g@crcomp.net> Newsgroups: rec.arts.sf.written,talk.philosophy.misc Subject: PR80 (Ace #72) In the caves of the Druuf Date: Sat, 7 Sep 2024 15:24:04 -0000 (UTC) Organization: A noiseless patient Spider Lines: 57 Message-ID: <20240907a@crcomp.net> References: <20240807a@crcomp.net> Content-Type: text/plain; charset=UTF-8stipulation Content-Transfer-Encoding: 8bit Injection-Date: Sat, 07 Sep 2024 17:24:04 +0200 (CEST) Injection-Info: dont-email.me; posting-host="32362948c4208f166c8302f15fab29db"; logging-data="1503739"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1975yMtP75R3waxlu6pq6x9" Cancel-Lock: sha1:GghPlFCOpgxxEWh8xvVO+sMhGL0= X-Received-Bytes: 3447 Bytes: 3572 Perrypedia link: <https://www-perrypedia-de.translate.goog/wiki/In_den_H%C3%B6hlen_der_Druuf?_x_tr_sl=de&_x_tr_tl=en> This adventure's set on a planet called Roland. Previously posted parallels (by authorial intention or otherwise) to Roland's horn Olifant are available here: <https://rec.arts.sf.written.narkive.com/AvqRC9JP/ot-sf-mythology#post7> In this PR episode, Perry uses gravity waves to send an S.O.S. signal. Near the bottom of the above link there's also an anecdote about walking on eggshells in order to enlighten Einstein's ego after Albert erroneously said gravity waves do not exist. It turns out such a statement contradicts Einstein's own theory. This novella continues to exposit hyperspace. Poe's prose poem _Eureka_ anticipates hyperspace. Pilot wave theory incorporates hyperspace into its metaphysical framework. Both are covered here: <https://rec.arts.sf.written.narkive.com/XrVRpBCj/hyperspace-from-poe-to-pilot-to-perry#post2> Feynman put forth a hot plate metaphor for the curvature of spacetime. And Ouspensky provides suitable dimensional nomenclature. Both concepts can be viewed here: <https://rec.arts.sf.written.narkive.com/nKdzKYQL/the-bonds-of-eternity-perry-rhodan-69-by-clark-darlton#post2> A basic understanding of tensors is necessary to continue beyond this point. Dan Fleisch provides an adequate introduction in his short "What's a Tensor?" video: <https://www.youtube.com/watch?v=f5liqUk0ZTw> With all of the preliminaries now out of the way, it's time to ponder something new and old: Einstein Field Equations (EFE). It took Albert ten years to develop EFE to describe the spacetime curvature of hyperspace. He did all of the hard work. As an aside, Sabine Hossenfelder <https://duckduckgo.com/?q=sabine+hossenfelder+einstein&iax=videos&ia=videos> says EFE are fairly easy to understand, relatively speaking. Einstein Field Equation: Learn its Definition and Derivation <https://testbook.com/physics/einstein-field-equation> Einstein Field Equations Fully Written Out: What Do They Look Like Expanded? <https://profoundphysics.com/einstein-field-equations-fully-written-out-what-do-they-look-like-expanded/> Danke, -- Don.......My cat's )\._.,--....,'``. https://crcomp.net/reviews.php telltale tall tail /, _.. \ _\ (`._ ,. Walk humbly with thy God. tells tall tales.. `._.-(,_..'--(,_..'`-.;.' Make 1984 fiction again.