Saturday, February 22, 2020

CYW 221 Emerald Spring

In a clear blue pool, the water is absorbing all of the colors except blue, which is what is reflected back to our eyes.  Here another factor enters into the equation.  This pool is lined with sulfur, and the yellow of the sulfur combines with the reflected blue light to make the spring appear emerald green.
at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

CYW 000 Our Route – NOT MINE

Yellowstone and Environs – Late Sept / Early Oct 2019 This trip was mostly about seeing Yellowstone.  But since that is such an incredibl...

  • CYW 149 From Soup to Stew
    The hydrothermal system at Artists Paintpots operates like a double boiler.  Underneath the ground there is a hot water system with hot ac...
  • CYW 139 White Dome Geyser
    Water temperature 188°F.  Eruption interval 12-24 minutes (nominal).  Eruption duration 2 minutes.  Eruption height 10-30 feet.  Named by ...
  • CYW 153 Travertines 1
    In geological terms this area is EXTREMELY RAPIDLY changing, with changes to its structure being noticeable within mere months.  This is b...