A Study on the Mysterious Road in Mt. Halla as a Scientific Cultural Asset
Dong Geul Hyun · Ae Kyung Shin
Department of Science Education, Teachers College, Jeju National University, Jeju 690-781, Korea
Doo Cheol Kim ∗
Department of Physics, Jeju National University, Jeju 690-756, Korea (Received 6 October 2014 : revised 29 October 2014 : accepted 29 October 2014)
The Mysterious Road of Mt. Halla on Jeju island, which is a scientific cultural asset, and the marvelous phenomenon occurring on the road were analyzed and are discussed scientifically and topographically for utilization in popularizing science and in science education. The marvelous phenomenon is that an automobile in neutral rolls up the inclined Mysterious Road automatically without an external force acting upon it. The results from our analyses and discussions in this study led to the conclusion that the phenomenon is physically impossible and is due to an optical illusion, which is caused by the particular topographical conditions of the incline angles and the directions of the ridges of the hills around the road. A simple simulation using these conditions showed that the main causes of the optical illusion were the particular incline angle and the direction of the ridges of the hills around the Mysterious Road.
PACS numbers: 01.40.Ej
Keywords: Scientific cultural asset, The Mysterious Road, Marvelous phenomenon, Inclined road, Optical illusion
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