L-4-Hydroxy Proline, (also referred to as Hydroxy Proline or Hydroxyproline), is an amino acid, a building block of protein, made by modifying another amino acid called Proline. It is the primary component of collagen, a fibrous protein found in the dermis of the skin that gives skin its structural

Today, we're going to talk about liquid rocket propellant!Liquid oxygen/gasoline ---- the fuel of the first liquid rocket engineOn March 16, 1926, Goddard successfully launched the first liquid-fueled rocket in history from Auburn, Massachusetts. The rocket uses liquid oxygen/gasoline as the propell