Abstract
A few of so-called magnetic hills that appear in some regions of Kurdistan-Iraq were studied.These kinds of hills are downhill but look like an uphill slope and have names like(Hunted Hill),(Magnetic Hill) or(Anti-gravity Hill)in literatures,reflecting attribution of the properties of the area as supernatural or magnetism. The gravity, magnetic field and the slope of the hills has been calculated.We investigated that no supernatural forces found at work in these places and the slope of these two hills are optical illusions produced by the local topography that makes a downhill to look like an uphill slope.
Highlights
An optical illusion is characterized by visually perceived images that are deceptive or misleading
The information gathered by the eye is processed by the brain to give a percept that does not agree with a physical measurement of the stimulus source.Magnetic hill is a remarkably common illusion which is found in numerous locations around the world
It is a stretch of road in a hilly area where the level horizon is obscured. Objects such as trees and walls that normally provide visual clues to the true vertical, may be leaning slightly. This creates an optical illusion making a slight downhill look like an uphill slope.Objects may appear to roll uphill
Summary
An optical illusion ( called a visual illusion) is characterized by visually perceived images that are deceptive or misleading.
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