100th birthday of Heinrich Hertz - Germany / Federal Republic of Germany 1957 - 10

This special stamp is dedicated to the 100th birthday of the eminent physicist, who was born on February 22, 1857 in Hamburg. Heinrich Hertz developed the experimental and theoretical foundations for electrodynamics, confirmed Maxwell's theory of electricity and magnetism, and was the first to generate electromagnetic waves. His experiments, on which the radio technology is based, led to today's world-wide wireless telecommunications in the field of telegraphy, telephony and television. The invited artists were free to portray Heinrich Hertz's pioneering attempts in a brand-like manner or to give a pure portrait. In their experiments, they made use of both options and found graphically attractive solutions. By Bert Jäger was a draft. Müller and Blase delivered two, Professor Richard Blank four, Georg Kühlborn five and Anton Stankowski eight proposals. The examination by the experts showed that the solutions developed on the physical did not meet the technical requirements in every respect. Therefore, the decision had to focus on a portrait mark, for which there were several good representations. The choice fell on one of the designs of Müller and Bubble. These graphic artists used extraordinary, very idiosyncratic means to make a portrait in pure black and white appear on a colored background. The resolution of the drawing in a horizontally striped screening sounds visually to the impression produced by an image that lights up on the television screen. The stamp was executed in two-color offset printing in black and light green at Bundesdruckerei Berlin.