The answer is Soviets. Petr Ufimtsev was the founder of stealth technology. Petr Ufimtsev - Wikipedia, the free encyclopedia

Good post (posts #1 and #2). Many people do not know much about the contribution of Russian and Soviet scientists in the field of modern weaponry; and sadly some of them are the ones who make the most noise. Petr Ufimtsev (actually, it is Pyotr or ÐŸÑ‘Ñ‚Ñ€) did a lot of research in this field that had no practical application in those times. This is much like 'Hausdorff distance', which was proclaimed useless by the NAZIs. Other researchers: Konstantin Eduardovich Tsiolkovsky - He pioneered the astronautic theory and made the the Tsiolkovsky equation. (http://en.wikipedia.org/wiki/Konstantin_Tsiolkovsky) Andrey Andreyevich Markov - He was a mathematician who is best known for his work on theory of stochastic processes. Modern day Markovian Processes and Markov Chain Monte Carlo methods are based on his theories and are used in tracking systems in missiles, along with environmental studies, stock market and investment banking. (http://en.wikipedia.org/wiki/Andrey_Markov) Georgy Feodosevich Voronoy - He was the student of Markov and his works include Voronoi Diagram which is used in Robotics even today. (http://en.wikipedia.org/wiki/Georgy_Voronoy) Ufimtsev: Tsiolkovsky: Markov: Voronoi:

I would have answered the quiz question right. Though I forgot the name of the scientist, but I read long back about the pioneering work of soviet scientists in the field of stealth. I think the F 117 came about with some espionage or something that gave americans the idea. I may be wrong.

And one must also know that the inventor of modern Low bypass turbofan is Arkhip Lyulka. The first engine to come out is the AL 31. This was done in 1976. And the patent still belongs to Lyulka. He was also founder of Lyulka engines. Poor guy died of Exhaustion!