The manufacturing of sheetglass - a chemical process at very high temperatures - was already known by our ancestors although the first efficient industrial production process was invented only 70 years ago. Today ...

Synthetic materials are solid organic substances which have been produced artificially in a chemical process and are not found in nature. In their properties they differ to a large extent from metallic materials. They ...

Transport by trucks is the corner pillar of supply with goods of all possible kind in many developing countries. But for instance bad road conditions which may have been caused by extreme climatic influences, will lead ...

Condoms have been in use and on the market for a long time. The materials used for them, were ingenious, but their usefullness and easy application left a lot to be desired. In the early thirties of this century a new ...

Nowadays conveyor belts are used both in surface- and in underground-mining for the transport of mineral coal, brown coal, phosphate and ore. It is international use to produce these belts in widths of 800 to 3,200 mm ...

In Germany the production of equipment for industrial soap factories looks back at a tradition of nearly one hundred years. In that period rich experience has been collected by steady development of the machinery. ...

The industrial manufacture of liquid dental care articles, made on a basis of chalk and soap can be traced back to approx. 1870. At the turn of the century, the first toothpastes in tubes appeared on the market. The ...

The production of lipsticks was until a few years ago one of the more complicated techniques in the cosmetic industry. Manufacturing methods have been improved considerably. The development of the casting system and ...

Everybody knows about the necessity to increase the world's food-production. That, of course, also increases the need for mechanical and chemical aids. The application of fertilizers, even in minor quantities, and in ...

Soils subjected to modern agricultural intensive usage require .the frequent addition of a number of mineral nutrients. Nitrogen is the most important among them. Ammonium Nitrate (AN) is a pure nitrogenous fertilizer ...