File talk:Doppler effect.svg

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Dear Pbroks13,

My name is Christine and I am a photo researcher for an educational textbook publishers. I am currently working on an astronomy textbook and the author would like to use this illustration showing the 'Doppler effect'. I would like to get formal permission and credit line from you, I was hoping you could contact me at athos2001 @ gmail. com (please take out the spaces, trying to save myself from spam). I look forward to hearing from you and thank you for your time and help with my request. Christine :-)

Hi Christine, I would suggest to discuss this on his talk page; that is less volatile. --Foroa (talk) 20:32, 11 August 2009 (UTC)[reply]

hi i believe that you are both wrong. — Preceding unsigned comment was added by 212.219.59.241 (talk) 13:44, 28 February 2022 (UTC)[reply]

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