User talk:AlexEHU

No original research please
Welcome to Wikipedia. We appreciate your contributions, but in one of your recent edits to Length contraction, it appears that you have added original research, which is against Wikipedia's policies. Original research refers to material—such as facts, allegations, ideas, and personal experiences—for which no reliable, published sources exist; it also encompasses combining published sources in a way to imply something that none of them explicitly say. Please be prepared to cite a reliable source for all of your contributions. You can have a look at the tutorial on citing sources. Thank you. - DVdm (talk) 19:23, 29 April 2022 (UTC)


 * Those animation you deleted where made by a relativity visualization program made by u/accipicchia092 which he send to me so I could add them here to explain length contraction a bit better. They are typical space-time diagrams found in every relativity textbook, including some of the ones in the reference list so I don't think there is any Wikipedia rule violation since it is easily verifiable but I could add more references if that is your problem. AlexEHU (talk) 14:38, 4 May 2022 (UTC)


 * You will need to add a reference (textbook containing a very similar image) for the animation itself. See wp:BURDEN. Good luck. - DVdm (talk) 18:17, 4 May 2022 (UTC)