Friday Factoid: The Colour of Water
It's time for yet another Friday Factoid. And today's question is...
"What colour is water?"
The most common answer is... "It's transparent. It doesn't really have a colour!"
The educated explain that the blue colour of the sea is only a reflection of the sky.
And they'd be wrong.
Water really is blue... Albeit rather a faint shade of the colour.
You'll find the answer in nature itself: Try looking into a deep hole in the snow, or into the centre of a thick icicle.
Or if you're feeling practical, go fill a big white pool full of water and look straight down through it. The water will be blue.
It's true that the reflection of the sky does affect the way the sea appears. And other elements, such as algae and other microscopic plants, make a big difference.
But water really does have a colour. And that colour is blue.
Credit where it's due, eh? :)
Labels: factoids
by Karl
3:54 AM
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