User talk:35.240.176.252

August 2018
Hello, I'm Aspening. I noticed that you made a change to an article, Photoelectric effect, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Aspening (talk) 02:40, 28 August 2018 (UTC)
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