Welcome, and thank you for experimenting with the Refracting telescope page on Wikipedia! Your test worked, and thank you for reverting or removing it yourself. The best way to do tests in the future would be to use the sandbox. You can look at these pages as well: how to edit a page, the tutorial, and how to write a great article. All of these pages are good places to start. Again, thanks, and we hope that you will like Wikipedia.   |™