'Wings of Change'

What do you normally think when you see birds fly freely in the grand blue sky? Well I normally think I were able to fly like that but then some people are more keen in their observations and their analysis. Here is an example how nature can be emulated and is beautifully explained using the example of the relation between the principles of aeroplanes and the flight of birds and their wings.

Link: Engineering on a Wing and a Prayer : Industrial Market Trends

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