Quote:
Originally posted by Atl Blue
HHH:
I assume all of these bangers were shot using video cameras. Unless you are using some VERY sophisticated professional equipment, video shoots at 30 frames per second. 30 frames per second means one frame every .033 seconds. I accept your theory that the human eye and brain cannot discern the timing of events that are .04 seconds apart. It sounds reasonable, and I have no evidence to think otherwise. I do think, however, that human reactions being variable, the number varies for each person, and therefore could be .05 for some people (or more) and .03 for others (or less).
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I asked the person that taped this, the exact same question that you did. He told me that his equipment shot at 60 frames per second. (He worked in nature film productions.)That is one every .016 seconds. This means to me that his equipment was three times as reliable as the human brain.
It also means that there should have been one third of the calls that were undeterminable and he only found 20% in that department. He admitted that he had made some extrapolations.
In other words, one frame might show the ball 5 inches from the glove and the foot 5 inches from the bag. The next frame shows the ball in the glove and the foot on the bag. Since we know that the ball travels faster than the runner, he extrapolated that the runner was out.
You are right about the numbers being variable for each person. In my piece, the 0.04 seconds came from a military study on 18-25 year old soldiers who had trained and practiced. I would guess that the rest of us are not as good.
Peter