Was watching your showed Sunday Feb. 16th 2014 on E/I on Channel This Tv. and one of your Questions was who invented the airplane. your answer was the Wright brothers "WRONG ANSWER"
Leonardo da Vinici,His observations and inventions were recorded in 13,000 pages of notes and drawings, including designs for flying machines (some 400 years before the Wright brothers' first success), the Wright brothers built and flew the first airplane ,but didnt invent it!!!!