Atmospheric optics wavelengths. A halo (ἅλως; also known as a nimbus, icebow or gloriole) is an optical phenomenon produced by the interaction of light from the sun or moon with ice crystals in the atmosphere, resulting in colored or white arcs, rings or spots in the sky. Many halos are positioned near the sun or moon, but others are elsewhere and even in the opposite part of the sky. They can also form around artificial lights in very cold weather when ice crystals called diamond dust are floating in the nearby air. There are many types of ice halos. They are produced
Nimbus (motorcycle) inexpensive. Thanks to the design's inherent reliability, using a Nimbus on a daily basis is still considered easy and economical. Nevertheless (and with some notable exceptions), today most Nimbus owners rarely ride more than a few thousand kilometers a year. Also, as the Nimbus often came from the factory with a sidecar attached, many of the ones on the road have recently been fitted with such. In the 1948 short film by the great Danish director Carl Theodor Dreyer, "De nåede færgen" (they made it to the ferry), considered by film enthusiasts as a masterpiece of suspense and rhythm. Though