Igor Sikorsky: Aircraft and Helicopter Designer Sikorsky thought helicopters would be a common form of transportation.  People would use them every day instead of automobiles. This has not happened. Yet helicopters have proved their value in other ways. One of the World’s Natural Wonders: the Grand Canyon Four Companies Working for the Common Good Instead of Profit As Long as It Remains Profitable, Child Trafficking Will Continue The Story of Radio The Guitar: an Instrument for Any Kind of Music

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