User talk:2001:44C8:44B0:90AA:0:0:0:1

July 2021
Hello, I'm Ts12rAc. I wanted to let you know that I removed one or more external links you added to Birefringence because they seemed inappropriate for an encyclopedia. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page or take a look at our guidelines about links. Thank you.  Ts12rAc talk to me 13:06, 26 July 2021 (UTC)