User talk:2409:4071:239D:31D1:0:0:9A7:80A1

July 2019
Hello, and welcome to Wikipedia. This is a message letting you know that one or more of your recent edits to Snell's law has been undone by an automated computer program called ClueBot NG.

Thank you. ClueBot NG (talk) 14:27, 8 July 2019 (UTC)
 * ClueBot NG makes very few mistakes, but it does happen. If you believe the change you made was constructive, please read about it, [ report it here], remove this message from your talk page, and then make the edit again.
 * For help, take a look at the introduction.
 * The following is the log entry regarding this message: Snell's law was changed by 2409:4071:239D:31D1:0:0:9A7:80A1 (u) (t) ANN scored at 0.893328 on 2019-07-08T14:27:19+00:00