critical angle (suomeksi)

Määritelmät:

(lb, en, physics) The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one
(lb, en, aerodynamics) The smallest angle of attack of an airfoil at which lift suddenly decreases and drag suddenly increases
(lb, en, architecture) The smallest angle of a ramp or stairs considered uncomfortable or unsafe