User talk:Shivanshu demonic

Welcome to Wikimedia Commons, Shivanshu demonic!

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-- Wikimedia Commons Welcome (talk) 10:59, 18 May 2013 (UTC)

Source of diagrams you uploaded

Hello Shivanshu demonic, and welcome to Wikimedia Commons.

In the last weeks you have uploaded a handful of diagrams regarding turbomachine blades and velocity diagrams. All of these uploads are marked as "Own Work". Can you please confirm that you have indeed drawn those yourself? (i.e. not scanned from a book or from lecture notes). It is absolutely crucial that you ensure you own the copyright for these diagrams. Otherwise a great deal of categorization, integration or even clean-up work by other volunteers will be lost when they are deleted.

I hope you can confirm authorship, and then I will give a hand categorizing the diagrams. Thanks and happy editing! Ariadacapo (talk) 07:06, 1 June 2013 (UTC)