User talk:Edward Morgan

July 2017
Hello, I'm Shellwood. I wanted to let you know that I reverted one of your recent contributions —the one you made with this edit to Fiber-optic communication— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Shellwood (talk) 05:53, 1 July 2017 (UTC)