Leonardo da Vinci's technical ideas were not published because many were unfinished. In addition, some of his methods for obtaining information were illegal, such as dissecting humans in order to know more about their anatomy.
^this is just what i put and i got a 100% so it's hella late but just in case anyone else needs it lol
They were not fully established and remained unfinished
Leonardo da Vinci was an artist and engineer who had great idea which were almost impossible to create during his time.
In conclusion, Leonardo da Vinci's technical ideas were not published because majority of them were not fully established and remained unfinished due to lack of support and technologies to help bring them to live.
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