History
Gold one of the noble precious metals, the 79th element of Mendeleev`s table. Mining and application of gold has a long history. People solder with gold in ancient times, now tin is used for these purposes.Gold capable of casting very difficult, therefore, people had to separate the casting to several parts. Previously, he covered the church, because gold has a high corrosion resistance and does not react with many acids. In 1836 the way smelting of «gold ruby» (a special kind of glass with a beautiful red color) was received by Johann Kunkelem. In the Middle Ages gold even tried to apply the medetsine, but to no avail.
Nowadays
For a long time, because of its softness it is not used in engineering and electronics. But in the 20 century with the advent of large and various properties of gold were used much more active. For example, in space technology, which requires details of possessing property unadhesion. The wide application of the gold found in other branches of science and industry: medical, manufacturing «ruby» glasses, gold solders and etc.
The price of gold depends on many factors and details; you can read in our forum.
