paint the whole world with a rainbow!

after the rain, the rainbow... spotted on sunday from the department.


this was actually a double rainbow, formed when there are two internal reflections within the raindrop and the rays exit the drop at an angle of 50 degrees° rather than the 42°degrees for the red primary bow. Blue light emerges at an even larger angle of 53 degrees°. this effect produces a secondary rainbow that has its colors reversed compared to the primary rainbow. physics in action.