View Full Version : Re: Visual closing speed

01-22-2001, 06:39 AM
I have run across a reference to the limit of human perception as 25 - 30
milliradians per second for persons to discern closing speed on objects.
The reference is

Plotkin, S. C. (1976) Accident and Product Failure Analysis. Oakland, CA

Can anyone direct me to the source of this material or any other sources for
this data?

Dennis Payne

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