How to tie a tie
Maravilhas da engenharia de guerra.
Commercial aircraft. You can always tell them apart by what the nose looks like
Boeing and Airbus picture comparison (Handy when plane spotting)
Boeing Family. I've been on all these airplanes...except maybe the 717. I can't really remember ever being on that one.
Famous military planes illustrated as cartoon style caricatures
United + Continental = The New United
comparaison taille helicoptere comparaison taille helicoptere:
INFOGRAPHIC: Russian Navy
Submarines and U-Boats