"The Secret of Flight" Dr Alexander Lippisch (eng.)
Educational series by brilliant German aeronautical engineer Dr. Alexander Lippisch, explaining the phenomena and physics of of flight in an understandable and engaging manner. Produced in 1955 by the University of Iowa.
![lakukaracza_](https://wykop.pl/cdn/c3397992/lakukaracza__5xTy4dtbHI,q52.jpg)
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