Point Perpendicular Light was created in 1899.
A normal ray in a diagram of reflection of light represents the perpendicular line drawn at the point of incidence on a mirror or reflecting surface. It is used to show the angle of incidence and angle of reflection in relation to the mirror's surface.
Point Cartwright Light was created in 1978.
Avery Point Light was created in 1943.
Smith Point Light was created in 1897.
Sugarloaf Point Light was created in 1875.
Lambert Point Light was created in 1872.
Stratford Point Light was created in 1822.
Maryland Point Light was created in 1892.
Love Point Light was created in 1872.
Point Judith Light was created in 1857.
Piney Point Light was created in 1836.
Hawkins Point Light was created in 1868.