Home » News & Blogs » The Palettes of Sunset
Bookmark and Share
Sky Lights

The Palettes of Sunset

8 Feb 2016, 07:01 UTC
The Palettes of Sunset
(200 words excerpt, click title or image to see full post)

Weather permitting, at the end of the day I like to wind down out on my south deck enjoying our beautiful Arizona sunsets. For your edification and entertainment, the slide show above features three sunsets from last year. Just click on the right and left arrows to change between the three slides.
You’ll see red, gold, and violet palettes. It never ceases to amaze me how many colors can result from the same basic constituents: yellow-white light from the Sun, an atmosphere that’s 78.09% nitrogen, and clouds made of water droplets.
The physics at work generating all those colors include: refraction, diffraction, interference, reflection, and scattering. These are the four primary wave phenomena applicable to light. I say “four” because scattering is actually a type of bulk reflection. So Mother Nature needs only 3 components and 4 laws to create these beautiful displays. This shouldn’t be all that surprising. Think about what a skilled artist can do with 3 colors and 4 brushes.
There’s a folder on my hard drive labeled “sunsets” and I continually add new photos. Every once in awhile I’ll skip the science lesson and just share some of these beautiful images. You have my word that ...

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod