Once in a Blue Moon is a phrase that refers to something occurring very rarely. In celebration of this rare occasion, I thought we would look at some other Optical Phenomena as well. Included in the info is a list of Atmospheric Optical Phenomena so You can test your own knowledge of rare events and update yourself if needed! If anyone knows them all, You get a million gold stars! Your photostudy is my old crowing crow as he is crowing and the Sun Halo that came my way, with a few hummers added. Enjoy!
I Lomo-ed the Crow in Picasa!
Lomo-ish is an effect in Picasa Editing Program (and others have it also). Lomo is a type of effect achieved through Lomo Photography. Below is an excerpt from Wikipedia explaining Lomography:
History[edit source | edit]
A Few Hummers today:
I had a Sun Halo:
Halo (optical phenomenon)
A list of optical phenomena[edit source | edit]
Atmospheric optical phenomena[edit source | edit]
- Alexander's band, the dark region between the two bows of a double rainbow.
- Anticrepuscular rays
- Auroral light (northern and southern lights, aurora borealis and aurora australis)
- Belt of Venus
- Blue Flash
- Blue moon
- Circumzenithal arc
- Crepuscular rays
- Earthquake lights
- Earth's shadow
- Glories (also known as Brocken's Specter or Specter of the Brocken)
- Green Flash
- Halos, of Sun or Moon, including sun dogs
- Heiligenschein or halo effect, partly caused by the Opposition effect
- Cloud iridescence
- Light pillar
- Mirages (including Fata Morgana)
- Shadow set
- Tyndall effect
Other optical phenomena[edit source | edit]
Optical effects[edit source | edit]
- Asterism, star gems such as star sapphire or star ruby.
- Aura, a phenomenon in which gas or dust surrounding an object luminesces or reflects light from the object.
- Aventurescence, also called the Schiller effect, spangled gems such as aventurine quartz and sunstone.
- The camera obscura
- Chatoyancy, cat's eye gems such as chrysoberyl cat's eye or aquamarine cat's eye
- Chromatic polarization
- Diffraction, the apparent bending and spreading of light waves when they meet an obstruction.
- Double refraction or birefringence of calcite and other minerals
- The Double-slit experiment
- Evanescent wave
- Fluorescence, also called luminescence or photoluminescence.
- Mie scattering (Why clouds are white)
- Metamerism as of alexandrite
- Newton's rings
- Pleochroism gems or crystals, which seem many-colored
- Polarized light-related phenomena such as double refraction, or Haidinger's brush
- Rayleigh scattering (Why the sky is blue, sunsets are red, and associated phenomena)
- Synchrotron radiation
- The separation of light into colors by a prism
- The Zeeman effect
- Thomson Scattering
- Total internal reflection
- Twisted light
- The Umov effect
- The ability of light to travel through space or through a vacuum.
Entoptic phenomena[edit source | edit]
- Diffraction of light through the eyelashes
- Haidinger's brush
- Monocular diplopia (or polyplopia) from reflections at boundaries between the various ocular media
- Phosphenes from stimulation other than by light (e.g., mechanical, electrical) of the rod cells and cones of the eye or of other neurons of the visual system
- Purkinje images.
Optical illusions[edit source | edit]
- The unusually large size of the Moon as it rises and sets, the moon illusion
- The shape of the sky, the sky bowl
Unexplained phenomena[edit source | edit]
Please see above link to view complete page
Last but not least, a secret hiding place for Rascal Roo!