Gunpowder is an explosive mixture of sulfur, charcoal, and potassium nitrate that burns rapidly. Flash powder is a pyrotechnic material that contains an oxidizer and a metallic fuel. Flashless powder ...

Since the formation of Earth approximately 4.5 billion years ago, the convection and release of hot magma in its mantle layer ...

A homeless Florida man accused of plotting a bomb attack on the New York Stock Exchange was arrested on Wednesday (November ...