You are viewing a single comment's thread from:
RE: Leonardo Da Vinci - Art of War (featuring @getonthetrain as author)
I remember seeing somewhere before Leonardo has a drawing of what could have been the helicopter. Thanks for sharing this from @getonthetrain.
@ace108 : I covered those inventions in the first episode: Inventions of Flight. If you have time, you should check it out. :)
thanks, let me have a look.