User talk:2600:1700:6FA0:1930:31D8:3F89:FCC8:561E

July 2018
Hello, I'm Shellwood. I wanted to let you know that I removed one or more external links you added to Diffraction 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. Shellwood (talk) 00:30, 22 July 2018 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

http://www.falstad.com/ripple/

Please do not add inappropriate external links to Wikipedia, as you did with this edit to Diffraction. Wikipedia is not a collection of links nor should it be used for advertising or promotion. Inappropriate links may include, but are not limited to, links to personal websites, links to websites with which you are affiliated and links that attract visitors to a website or promote a product. See the external links guideline and spam guideline for further explanations. Because Wikipedia uses the nofollow attribute value, its external links are disregarded by most search engines. If you feel the link should be added to the article, please discuss it on the article's talk page rather than re-adding it. Thank you. (t) Josve05a  (c) 00:34, 22 July 2018 (UTC)

Please stop your disruptive editing. If you continue to vandalize Wikipedia, as you did with this edit to Diffraction, you may be blocked from editing. Shellwood (talk) 00:37, 22 July 2018 (UTC)

This is your only warning; if you vandalize Wikipedia again, you may be blocked from editing without further notice. Shellwood (talk) 00:39, 22 July 2018 (UTC)