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) last contract from the army was delivered. The Nimbus now has attained almost iconic status, not only in Denmark but also abroad where its very individual character makes it a machine of unusual technical interest. Of around 12,000 "Bumblebees" produced, today more than 4,000 are registered and running in Denmark alone, and likely a few hundreds are used outside Denmark, mainly in Sweden, Germany and the US. Many other Type "C" examples exist, either in museums or otherwise not currently registered for road use. Even today most spare parts (although not "tinware") readily are available as well as being relatively