ScientificAmerican1915-01-09.jpg Scientific American 1915-01-02ThumbnailsScientific American 1915-01-16Scientific American 1915-01-02ThumbnailsScientific American 1915-01-16Scientific American 1915-01-02ThumbnailsScientific American 1915-01-16Scientific American 1915-01-02ThumbnailsScientific American 1915-01-16Scientific American 1915-01-02ThumbnailsScientific American 1915-01-16

A mad plunge for life: fighter plane in a deep dive, pilot or his passenger uses handgun to shoot at enemy fighter far above him.