Not often- cobalt is very prone to oxidization. Certain alloys may used as plating, however.
yes
what do we make or get from cobalt
The pigments in cobalt salts of alumina are used to make the color cobalt blue. The pigments are strong, which is why the color is used in many pieces of jewelry, paint and ceramics.
Ancient people used obsidian ( rocks used to make weapons)
Aryans used stones to make weapons
Cobalt has as atomic number 27 and as symbol Co. The cobalt element is indeed used in making blue cobalt glass, among many other byproducts and applications.
iugerguer9 the maori used wood, animal bones and greenstone to make their weapons. \
Iron, nickel, and cobalt are the most common metals used to make ferromagnets. These metals have magnetic properties that allow them to be easily magnetized and retain their magnetism.
Their winning edge was chariots.
Cobalt is generally a stronger magnetic material compared to lead. This is because cobalt has more unpaired electrons in its atomic structure, giving it stronger magnetic properties. Lead is a diamagnetic material, meaning it does not have unpaired electrons and is not as strongly magnetic as cobalt.
A blacksmith would make the swords, knives, and other weapons used by a knight.
Cobalt is the transition metal commonly used to impart blue color to glass. It is added in small amounts as cobalt oxide during the glassmaking process to achieve the desired blue hue.