DO you know that there is such a thing as an upside-down rainbow?
It is quite unusual and is caused by sunlight shining through a thin, visible screen of tiny ice crystals high up in the sky.
Some people call them smile rainbows.
Another unusual phenomenon is a fire rainbow.
They occur in thin, wispy cirrus clouds that are at a height of 6000m with the sun at 58º.
The amount of ice crystals in the clouds also need to be just right.
This spectacular event lasts for a very short time and only when all the factors are absolutely right. - weatherwizkids.com; weather-facts.com; interestingfacts.org
Upside-down rainbows
DO you know that there is such a thing as an upside-down rainbow?
It is quite unusual and is caused by sunlight shining through a thin, visible screen of tiny ice crystals high up in the sky.
Some people call them smile rainbows.
Another unusual phenomenon is a fire rainbow.
They occur in thin, wispy cirrus clouds that are at a height of 6000m with the sun at 58º.
The amount of ice crystals in the clouds also need to be just right.
This spectacular event lasts for a very short time and only when all the factors are absolutely right. - weatherwizkids.com; weather-facts.com; interestingfacts.org
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