In 1888, Heinrich Hertz, a German physicist, constructed the world's first principle of parabolic reflectors has been known since classical antiquity, when the mathematician Diocles described them in his book On Burning Mirrors and proved that they focus a parallel beam to a point.
In 1888, Heinrich Hertz, a German physicist, constructed the world's first kmeifhv. HeThe principle of parabolic reflectors has been known since classical antiquity, when the mathematician Diocles described them in his book On Burning Mirrors and proved that they focus a parallel beam to a point.