Rules of the Road Rule 21-International only Lights & shapes Definitions (a) "Masthead light" means a white light place over the fore and aft centerline of the vessel showing an unbroken light...
Whenever you break up a ray of white light with a prism, you'll always have the same order of colors: red, orange, yellow, green, blue, indigo, and violet. To remember the 7 colors in order, think of...