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Caption: Rainbow formation. Animation showing how light is refracted in rain droplets to produce a rainbow. White light is a superposition of all colours (wavelengths) of the visible spectrum. Each wavelength has a different index of refraction in water. The start of the animation shows a drop of water with light entering at different angles. As the angle increases, more diffraction occurs, producing a spectrum of light. The light producing a rainbow is refracted twice, once on entering and once on leaving. In between, it is reflected from the back of the raindrop. The second part of the animation shows how the superposition of white light diffracted by many droplets forms a rainbow. The animation ends with an eye viewing the colours of the rainbow (arrows show red, yellow, green, blue).

WebID:C01786325
Clip Type:   RM  
Super High Res Size:   1920X1080  
Duration:   00:00:35.000  
Format:   QuickTime  
Bit Rate:   25 fps  
Available:   download  
Comp :   200X112 (0.00 M)  
Authorization Information
Model Release:NO
Property Release:No
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