Rayleigh Scattering

There have been quite a lot of colourful sunsets recently. I went hunting for good wordsmith quotes for today's Blip, but got side tracked in to science....

"Sunset colors are created by a phenomenon called Rayleigh scattering. It’s the same phenomenon that makes the sky appear blue during the day. Sunlight contains all the colors of the rainbow. But not all the colors reach the ground in the same concentration. Nitrogen and oxygen molecules in our atmosphere act as little mirrors for blue and violet light, in particular. That means not as much blue or violet light reaches the ground. Instead, it bounces around in our atmosphere, creating the blue dome of sky we’re all so familiar with. At sunset, light has to travel through a greater distance of atmosphere to reach our eyes — so even more blue light, and even some green and yellow light, gets filtered out. That leaves us with the warmer hues of the visible light, the reds and oranges, and it’s why many sunsets look like fire."  'Why winter sunsets are best, according to a meteorologist'

Meanwhile, in other news:
This evening bro and I went to the Green Dragon, as we did last Friday, for their excellent fish and chips with a couple of pints of their equally excellent Greene King IPA.  

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