National Find A Rainbow Day

3 April is National Find A Rainbow Day, which is observed annually.

Jill Magnus said, “There are people that see rainbows as an artistic masterpiece in the sky, to others it is a sign of hope and to many it’s a sign of promise. It can be all three: beauty, hope and promise.”

A rainbow is a spectrum of light in the form of a multi-coloured arc that appears in the sky. It is caused by both reflection and refraction of light in water droplets in the Earth’s atmosphere. These rainbows always appear directly opposite the sun. The light is refracted (bent) when it enters a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it.

Red is the colour that is visible on the outer part of a rainbow and violet on the inside of a primary rainbow. Children learn the mnemonic ROYGBIV in science class to help them remember the sequence of the colours of the rainbow which is red, orange, yellow, green, blue, indigo and violet.

Many forms of airborne water can cause rainbows, including rain, mist, spray and dew.

To celebrate today is easy. Find yourself a rainbow or use the garden hose or a prism to make one yourself.

Use #NationalFindARainbowDay to post on social media.

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