User talk:64.237.236.154

Please do not add or change content without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Materialscientist (talk) 23:18, 1 May 2017 (UTC)

May 2017
Please stop your disruptive editing. If you continue to vandalize Wikipedia, as you did with this edit to Electromagnetic radiation, you may be blocked from editing. Quinton Feldberg (talk) 00:27, 2 May 2017 (UTC)
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