Analysis of information sources in references of the Wikipedia article "வானூர்தியியல்" in Tamil language version.
{{cite book}}: Invalid |ref=harv (help){{cite book}}: Invalid |ref=harv (help)Sir George Cayley is one of the most important people in the history of aeronautics. Many consider him the first true scientific aerial investigator and the first person to understand the underlying principles and forces of flight.