Find a Rainbow Day
Rainbows are part of the myths of many cultures around the world.
In the ancient beliefs of Japan, rainbows were the bridges that human ancestors took to descend to the planet.
In Navajo tradition, the rainbow is the path of the holy spirits, and is frequently depicted in sacred sand paintings.
The Maori tell a tale of Hina, the moon, who caused a rainbow to span the heavens even down to the earth, for her mortal husband to return to earth to end his days, since death may not enter her celestial home.
The apparent discreteness of main colours is an artifact of human perception and the exact number of main colours normally described is a somewhat arbitrary choice. The Munsell colour system (a 20th-century system for numerically describing colours, based on equal steps for human visual perception) distinguishes 100 hues.
Rainbows can also be seen in moonlight (moonbow), fog (Fog bow), waterfalls, and even in the spray created by waves or whale spouts.
This tartan by designer Carol A.L. Martin, employs the gentle hues of a rainbow during a light spring rain.
For more fascinating rainbow facts about the predicted and now photographed 5th order rainbow, click the beautiful rainbow over the ocean.