Frozen Vibrations
Charles Shan
Award: Top 100
Award: 3rd Place Contrived
School: wooster school
Teacher: christopher pannone
Category: Contrived
Photo #19492
Frozen Vibrations
This photo captures the vibration of guitar strings in a way that we wouldn't typically see. Using a rolling shutter camera, the string appears to twist in waves, but no special effects were used.
When a guitar string is strummed, it quickly vibrates, creating a standing wave. The frequency of vibration determines the pitch that we hear. In the photo, we can observe that thinner string creates more visible waves, so it has higher frequency which results in higher pitch. In contrast, thicker strings creates less visible waves , so it has lower frequency which results in lower pitch.
Most digital cameras do not take a whole picture at once. Instead, they use a rolling shutter that scans the image line by line, from top to bottom, over a short time interval. As the guitar string moves during this scan, its position changes slightly between each line of pixels the camera captures. This creates distorted wave-like patterns that records the visual "trace" of the string's vibration.
This photo is a fascinating demonstration of how time and motion can act in surprising ways when recorded. What is observed is not blur or error but a glimpse into the relationship of physics and technology.
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