User talk:Freenoobgg

Hello, Freenoobgg, and welcome to Wikipedia! I hope you like the place and decide to stay. Here are some pages you might find helpful: I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes ( ~ ); this will automatically produce your name and the date. If you need help, please see our help pages, and if you can't find what you are looking for there, please feel free to ask me on my talk page or place  on this page and someone will drop by to help. Red Director (talk) 04:42, 18 February 2019 (UTC)
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December 2020
Please do not introduce incorrect information into articles, as you did to Speed of light. Your edits could be interpreted as vandalism and have been reverted. If you believe the information you added was correct, please cite references or sources or discuss the changes on the article's talk page before making them again. If you would like to experiment, use your sandbox. Thank you.

Note: Don't say that you checked the sources as your did here. I checked and found that at least two of your corrections are wrong. See "The final value given is 299,710km./sec" (not 299,711 as you wrote) and "This gave a value for c of 315,000 km/s", not 313,000 as you wrote. - DVdm (talk) 14:05, 3 December 2020 (UTC)


 * Yo! I have not vandalized the page. I have just referenced the cited papers.
 * Here, to explain. A referenced paper for the Rømer's determination of the speed of light is this one, which is I believe reference 88, and if you scroll to the page 352 you see that the value he got for the time to cross the radius of Earth's orbit is 10min45s which, if you multiply it with today's known orbit raidus, gives 230000 km/s. Rømer never actually gave the number in km/s.
 * Next, a paper cited for Fizeau's determination of the speed of light is given here, which should be reference 136, and if you read page 56 in the document you can clearly read that "The measurements  allowed  Fizeau  to  calculate  a  speed  of  light  of  313,300  km/s."
 * Finally, the one that most annoys me, is the Rosa and Dorsey. In their original work, and I have no idea why you gave me the Essen and Gordon-Smith paper for reference, it can be seen in table XXX on page 601 the speed of light WITH the uncertainty and if you correct both to vacuum consistently by multiplying with sqrt(1.00055) you get my values. This should be reference 105.
 * Freenoobgg (talk) 12:11, 10 December 2020 (UTC)


 * The cited sources in the article give some values. When we don't agree with these values and have different (possibly contradicting) sources, we can't just change the values in the article and walk away. Instead, we need to go to the article talk page and start a discussion about the listed values and their sources. Then, by wp:consensus, it can be decided whether the values (and their sources) are to be changed in the article. If nobody replies on the talk page, then after a few days we can change the values and the sources in the article, mentioning the talk page in our edit summary. - DVdm (talk) 15:27, 10 December 2020 (UTC)