The Dark Side of Maintenance: Maintenance-induced failures happen all too often
Mike Busch writes that maintenance-induced failures, incidents in which a mechanic...never a mechanic takes something apart and puts it back together, there's a risk that something won't go b...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.