Experiments on the crystallization of various inorganic substances: crystallization from solution, crystallization from melt and vapour phase, mixed...
Presentation of the economic upswing in the GDR, emphasizing the discovery of the process for the production of high-temperature lignite coke and the...
Hans, a proud fisherman with a passion for his calling, has high hopes that his son, Johan, will follow in his footsteps and become the owner of his...
