why do birds fly so easily and so well and common myths or truths to the aerodynamics of bird flight
i have had a lot of thought on this over the years from a sparrow to a albatross and i do believe that the common accepted ideas do not add up to modern calculations. birds fly so well simply because they have hollow bones. birds fly so well because the have enormous wing muscles.Lights, Camera, Action! Best video of 2013 competition with a prize
...2) You can't vote on your own video. 3) There will be just one best video in all categories, which means, it could be a scenic video, training, a flight journal, you get the idea.......