User talk:Khaledsamy999

Welcome
Hello Khaledsamy999 and welcome to Wikipedia! We appreciate encyclopedic contributions, but some of your contributions do not conform to our policies. For more information on this, see Wikipedia's policies on vandalism and limits on acceptable additions. If you'd like to experiment with the wiki's syntax, please do so in the sandbox rather than in articles.

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I hope you enjoy editing and being a Wikipedian! Please sign your name on talk pages using four tildes ; this will automatically produce your name and the date. Feel free to write a note on the bottom of my talk page if you want to get in touch with me. Again, welcome! mfb (talk) 15:37, 17 June 2017 (UTC)

June 2017
Welcome to Wikipedia. We welcome and appreciate your contributions, including your edits to Gravitational constant, but we cannot accept original research. Original research refers to material—such as facts, allegations, ideas, and personal experiences—for which no reliable, published sources exist; it also encompasses combining published sources in a way to imply something that none of them explicitly say. Please be prepared to cite a reliable source for all of your contributions. Thank you. Jasper Deng (talk) 19:54, 17 June 2017 (UTC)