So-called Fire Rainbows actually have nothing to do with fire or rainbows, however they are absolutely awesome! The correct nomenclature for this optical phenomenon is circumhorizontal arc (circumhorizon arc and lower symmetric 46° plate arc are also accepted). A multi-colored halo (spanning from the red wavelengths at the top to the indigo like a rainbow) [...]
Read More clouds, meteorology, prism, rainbow, sky, sunlightOur sun is absolutely astounding, and that's no news, especially for JOL readers. However, the grand winner of a National Geographic exploration trip through X Prize, Joe Capra, entered with a stunning video about our home star's polar seasonal effects so delightfully, I had to share. In areas north of the arctic circle or south of the [...]
Read More arctic, circle, daylight, iceland, polar, rise, set, sun, sunlight, sunrise, sunsetI was driving earlier this morning through Ontario on my way to Buffalo for a flight, and the sky was clear and cloudless. It's a little on the chilly side up there in the Buffalo area (at least it was at 7am when I was on the road), but on the CBC News I heard [...]
Read More EPA, radiation, sunburn, sunlight, ultraviolet, UVA, UVB, UVC