The care of the fingernails can be various: relaxing, excitingly, a self experience and more than only one job, and which is beautiful one to the fact that it is not only something for the female sex. Manicure has also something with adventure to do to airplanes and space technology. Don't you believe? That is however a fact! A beautiful example is the birth one the most interesting manicure product more than 30 years ago - the polishing file. At that time an American addressed, a German abrasive manufacturer. Together and tested they developed first ultra polishing agents on document. The crucial break-through with this pioneer work succeeded with the merging of the finest grains into a flexible rubber adhesive. The grain was now no more as before rigidly on the paper web bound, but additionally in itself freely swivelling. The gentlemen sold this new product with success in the United States also to the aircraft industry, the Navy and even to NASA. It was used, in order to wait and make after the employments again for the pilots the plexiglass domes of the airplanes “highly transparent”. Thus also the heat shield of the first moon rocket with this product was polished. And with this material, with which also today still everywhere in the world airplane domes are worked on, polish yourselves exactly with good polishing files your fingernails. Hightech purely!