Arte no céu // Nuvens em exibição // 60 fotos
http://www.stumbleupon.com/su/AfljM7/:6vj9T3H6:Xl40enr$/matadornetwork.com/bnt/60-insane-cloud-formations-from-around-the-world-pics/http://www.stumbleupon.com/su/AfljM7/:6vj9T3H6:Xl40enr$/matadornetwork.com/bnt/60-insane-cloud-formations-from-around-the-world-pics/ Photo: NASA Langley Research Center (NASA-LaRC) 60. Vortex cloud, Wallops Island, VA The photo below is from a NASA study on the wake vortices of aircraft. Here, the vortex phenomenon is made observable with the use of colored smoke. The formation occurs naturally in many diverse scenarios — tornadoes, hurricanes, and cyclones being obvious cloud-related examples. Read more at http://matadornetwork.com/bnt/60-insane-cloud-formations-from-around-the-world-pics/#woCWeexdbYX3cZtg.99