User talk:2600:1700:A250:1740:907F:31EA:F203:9021

March 2020
Please do not add or change content, as you did at Escape velocity, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you.

Note regarding your edit: please note that the the cited source says 11.186. See https://books.google.com/books?id=JjrdCG5BFwUC&pg=PA240 - DVdm (talk) 15:08, 26 March 2020 (UTC)