What metals are considered the most expensive?
- 26.11.2019 08:23
- 10.01.2020 08:47
Copper is obtained from sulfide ores.
- 10.01.2020 02:00
Naturally, clays are found in a loose, paste-like or consolidated state.
- 03.12.2019 08:23
Man and stone have been inextricably linked since ancient times.
- 11.10.2019 14:45
How did our ancestors process wood and what did it mean in the life of a nomad?
- 01.10.2019 14:29
Processing of leather and fur is perhaps one of the oldest crafts on earth.
- 01.10.2019 08:22
For nomadic peoples, felt and wool were the main materials that served a person throughout their life.
- 04.10.2019 14:46
The Iron Age came when a person learned to mine iron from rocks where there was metal.