This is the second in a series of two pictures taken at the San Francisco Airport, showing an optical illusion caused by exhaust from airplane jet engines. In this picture, the jet engine at the back of the white plane in the foreground is giving out hot air exhaust at its rear. A Southwest airplane happened to be taxiing at the back. Its colourful design is turned into a blurred mosaic due to refraction and turbulence caused by the exhaust air. Notice that the word “Southwest” is more blurred at the beginning of the word than at its end.

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Ethan Yan
Nueva School, Hillsborough, California, USA
Honourable Mention ( High School Individual Category )

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