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RE: Flights Mania 01: Drone freak
https://steemit.com/steemstem/@steemstem/guidelines-on-copyright-standards-in-steemstem
Go here. i take it you have read the rules. steemstem values the science of how things work, rather than just saying things work. more proof.
Thank you for the information sir.. But I described the design and working principles of a chirocopter..