As many of you will probably have seen, a rainbow generally appears when it has been raining and the sun comes out. The reason we see a multitude of beautiful colours in the sky is the result of the sun rays shining through the raindrops at different angles and splits into different colours.
A rainbow is actually an optical illusion. When the sun shines onto the droplets of water, it acts like a prism and takes on the form of a multi-coloured arc with red on the outside and violet on the inside. A double rainbow is when a second, fainter arc with the colours in the opposite order.
Even though a rainbow goes over a spectrum of colours, traditionally the full sequence of colours is most commonly cited as red, orange, yellow, green, blue, indigo and violet. Many people believe that because rainbows are magical and have some special reward at the end, such as a croc of gold. However, although they might appear magical to us, as far as I am aware, they don't have a special surprise at the end of them – although I can't say I've ever reached the end of a rainbow.
A rainbow is actually an optical illusion. When the sun shines onto the droplets of water, it acts like a prism and takes on the form of a multi-coloured arc with red on the outside and violet on the inside. A double rainbow is when a second, fainter arc with the colours in the opposite order.
Even though a rainbow goes over a spectrum of colours, traditionally the full sequence of colours is most commonly cited as red, orange, yellow, green, blue, indigo and violet. Many people believe that because rainbows are magical and have some special reward at the end, such as a croc of gold. However, although they might appear magical to us, as far as I am aware, they don't have a special surprise at the end of them – although I can't say I've ever reached the end of a rainbow.