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Updated: Feb 13, 2026
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Single Wavelength Shadow Imaging of Caenorhabditis elegans Locomotion Including Force Estimates
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Me and my shadow: Elongated sunset shadows disrupt size constancy.
1Hokkaido University, Japan.
I-Perception
|February 12, 2026
Summary
At sunset, shadows lengthen significantly, appearing distorted. This study explores why our own shadows uniquely fascinate us, despite their physical proportions remaining unchanged.
Area of Science:
- Physics
- Perception
Background:
- Shadows lengthen considerably at sunset, potentially exceeding ten times an individual's height.
- Perceptual illusions can alter the appearance of elongated shadows, making them seem disproportionate.
Purpose of the Study:
- To investigate the optical and psychological factors contributing to the fascination with elongated shadows.
- To explain the perceived disproportions in human shadows at sunset.
Main Methods:
- Analysis of geometric optics principles governing shadow formation.
- Exploration of principles of visual perception and perspective.
Main Results:
- Shadow elongation is a predictable optical phenomenon based on the sun's low angle.
- Perceived disproportions (tapered head, long legs) result from viewing distance and fixed perspective, not physical distortion.
Conclusions:
- The fascination with our own shadows stems from a combination of optical effects and inherent human psychological responses.
- Understanding the physics of light and shadow clarifies the visual perception of elongated human shadows.
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