Aerodinamika za pocetnike po NASA-i

[misha]

http://www.grc.nasa.gov/WWW/K-12/airplane/bga.html

kome je lakse na srpskom
http://translate.google.com/translate?hl=en&sl=en&tl=sr&u=http%3A%2F%2Fwww.grc.nasa.gov%2FWWW%2FK-12%2Fairplane%2Fbga.html