Joonteparvede mähisjooned

Abstract

The point of this bachelor’s thesis is to explore the envelopes of family of curves and curves characteristic points on the plane. In this thesis it has been studied enveloping surface of family of spheres (cone of sound in the tail of aircraft), caustic of lighting the inside of container, curved lines formed by characteristic points of spokes of wheel (for example Pascal’s lima¸con in the spokes of bicycle’s wheel). The Result is miscellaneous possible applications in interpretation of wave formation and shock waves.