"Celts" Natural Recordings by Native Speakers
A group of indigenous peoples who spoke a Celtic language and lived in ancient times, primarily in Western Europe. The Celts were known for their metalwork, art, and warrior culture. They were also skilled farmers and traders. The Celts were warlike and had a strong sense of community and tradition. They built hill forts and other forms of defensive architecture, and were known for their battles with the Romans. Today, the term "Celt" is also used to refer to the modern-day cultures and identities of people who claim descent from the ancient Celts, particularly in Ireland, Scotland, Wales, and Cornwall.
Cementation is the process of changing a solid, usually metal, into a solid solution with another element by heating it with that element under pressure. It is also the process of hardening or solidifying a material, such as cement or concrete, by the action of water or other liquid, especially through a chemical reaction. In geology, cementation refers to the process of sediment grains being bound together by a mineral or chemical substance, forming a solid rock.