Creative Speculation
In reply to the discussion: Here is the problem with the 911 conspiracy theory's...... [View all]zeemike
(18,998 posts)The shutter speed of that movie camera was probably about 1/30s....and maybe lower...now do the math....a bullet traveling at 2500fps will travel some 80 feet from the time the shutter opens to when it closes...so it could be that the bullet had just left the gun when the shutter opened and just impacted when the shutter closed...and that would be what you see.
So it is likely that 313 is when the impact occurred...but no I can't say with certainty because I don't know exactly when the shutter was open and closed....but you can guess from the size of the cloud of debris around the head that the impact had just happened.
By looking at the next few frames you can see clearly the force of that impact drove the head back
Here is a link to all the frames of the Zapruder film....open 312 and 313 and put them side by side and see if you think it moved...and tell me how much....I don't see it....then look at the next few frames and the head does jerk back violently.
http://www.assassinationresearch.com/zfilm/
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