User talk:Hamming yu

Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions have been undone because they appeared to be promotional. Advertising and using Wikipedia as a "soapbox" are against Wikipedia policy and not permitted. Take a look at the welcome page to learn more about Wikipedia. Thank you. Materialscientist (talk) 05:04, 20 January 2017 (UTC)[reply]

Hamming yu, you are invited to the Teahouse!

Hi Hamming yu! Thanks for contributing to Wikipedia.
Be our guest at the Teahouse! The Teahouse is a friendly space where new editors can ask questions about contributing to Wikipedia and get help from experienced editors like ChamithN (talk).

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16:05, 20 January 2017 (UTC)