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This is an accepted version of this page This is the latest accepted revision, reviewed on 3 July 2024. April Fool's Day hoax Flying Adélie penguins Miracles of Evolution is a BBC film trailer featuring flying penguins made in 2008 as an April Fools' Day hoax. The film was advertised as compelling evidence for Charles Darwin's theory of evolution. It was largely set on King George Island, 120 ...
The blue sky spectrum contains light at all visible wavelengths with a broad maximum around 450–485 nm, the wavelengths of the color blue. Diffuse sky radiation is solar radiation reaching the Earth 's surface after having been scattered from the direct solar beam by molecules or particulates in the atmosphere .
Crepuscular rays usually appear orange because the path through the atmosphere at dawn and dusk passes through up to 40 times as much air as rays from a high Sun at noon. Particles in the air scatter short-wavelength light (blue and green) through Rayleigh scattering much more strongly than longer-wavelength yellow and red light.
The small particles in the expanding exhaust plume or "cloud" diffract sunlight and produce the rose, blue, green and orange colors—much like a dispersive prism can be used to break light up into its constituent spectral colors (the colors of the rainbow) – thereby making the twilight phenomenon all the more spectacular. [1]
Sky brightness refers to the visual perception of the sky and how it scatters and diffuses light. The fact that the sky is not completely dark at night is easily visible. If light sources (e.g. the Moon and light pollution ) were removed from the night sky , only direct starlight would be visible.
Emperor penguins are the tallest and heaviest of the 18 penguin species. They can weigh up to 88 pounds (40 kilograms) and stand 45 inches (1.1 meter) tall.
Why is the sky orange? Sunlight is made up of white light, which contains all of the colors of the rainbow. ... but the smoke builds up during the day. At sunset, the light from the the sun has to ...
Natural light sources in a night sky include moonlight, starlight, and airglow, depending on location and timing. The fact that the sky is not completely dark at night can be easily observed. Were the sky (in the absence of moon and city lights) absolutely dark, one would not be able to see the silhouette of an object against the sky.