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Mirage Mirror On The Wall, T. Kosa, Peter Palffy-Muhoray
Mirage Mirror On The Wall, T. Kosa, Peter Palffy-Muhoray
Peter Palffy-Muhoray
We discuss mirages formed near a sun-heated wall, and consider the underlying physics. The temperature and refractive index variations in air near the wall are estimated, and a simple approximate picture of ray propagation is presented. Estimates of the thermal decay length and ray curvature are compared with experimental observations.