Doom

Metal

Metal   In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic Bonds. Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons. The metals are one of the three groups of Elements as distinguished by their ionization and bonding properties, along … Read more

Zero hour

Zero Hour Zero hour is the moment in time when a military operation is scheduled to begin. It is also used more generally to refer to any critical moment or deadline. The term “zero hour” originated in the military, and it is still used in that context today. For example, the zero hour for a … Read more