TIME / PERIODIC-MOTION ALIASING
One motion.
Two ways to see it.
A moving marker can appear fixed, slower or reversed when we observe it at repeating intervals.
Change the rhythm of the motion and the rhythm of observation independently. The marker always turns clockwise.
An original explanatory simulationEvery preview moment.
3.0 cycles per second · clockwise
The position at the current preview time.
One observation at a time.
3.0 samples per second · stationary
Sample 1 at 0.000 s
WHAT THE SAMPLES SUGGEST
The sampled position stays fixed. The marker completes whole turns between observations; it never physically stops.
Starts paused. Play stops after four seconds. Step buttons land on sampling times; scrubbing reveals the motion between them.
FROM MECHANISM TO MESSAGE
Order can emerge
from repeating change.
Use the relationship as an experiment: can a stable sampled position communicate consistency within motion? Compare matched and detuned rhythms, then ask viewers what stays constant and what changes. This is a proposed communication exercise, not a measured outcome.
Read the technique and source references ↗What this study does—and does not—show
The first panel evaluates a continuous mathematical path at each preview update. Your screen still has a finite refresh rate. The second panel observes that same path at explicit sampling times, starting at zero, and holds the most recent observation.
Direction describes the shortest step between samples. At exactly half a turn per sample, either direction fits. Many faster underlying motions can also produce the same sampled positions; the model’s known motion supplies the comparison.
There is no shutter, exposure, aperture, motion blur or photographic capture here. There are no flashing lights. Rates are illustrative and are not historical camera settings.
This is an original rotating-marker simulation, not a reconstruction of Little Boots’ Earthquake or a tested production recipe. The source account describes recurring drops; this study uses a different, original image to explain the principle.
Reduced-motion settings keep playback disabled. The time slider and sample-step buttons remain available for still inspection.