Before revision: Mathematical model See: Liquid mirror telescope#Explanation of the equilibrium Rotation speed and focal lengthThe focal length of the paraboloid is related to the angular speed at which the liquid is rotated by the equation: , where is the focal length, is the rotation speed, and is the acceleration due to gravity.
After revision: Mathematical model Rotation speed and focal lengthThe focal length of the paraboloid is related to the angular speed at which the liquid is rotated by the equation: , where is the focal length, is the rotation speed, and is the acceleration due to gravity.