Hello Wanchung Hu! Welcome to Wikipedia! Thank you for your contributions. You may benefit from following some of the links below, which will help you get the most out of Wikipedia. If you have any questions you can ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Please remember to sign your name on talk pages by clicking or by typing four tildes "~~~~"; this will automatically produce your name and the date. If you are already loving Wikipedia you might want to consider being "adopted" by a more experienced editor or joining a WikiProject to collaborate with others in creating and improving articles of your interest. Click here for a directory of all the WikiProjects. Finally, please do your best to always fill in the edit summary field. Happy editing! Just Heditor review02:28, 1 March 2007 (UTC)[reply]
Hello. Please do not duplicate a comment across multiple articles' talk pages. If you are looking for a central location, perhaps you would find the talk page of the WikiProject Physics (link) to be suitable. Thx in advance for your cooperation. Regards, El_C03:57, 28 March 2008 (UTC)[reply]
Unfortunately, I'm going to have to briefly restrict your editing access, so that I can get your attention. My apologies in advance for the inconvenience. El_C04:02, 28 March 2008 (UTC)[reply]