What physics reveals about the JFK event

[Andrew Mason]

Indeed and if you are to switch terms you too should be clear. I have already explained that absorbing force is simply the transference of kinetic energy into the damage of structures. Did you miss that? Or if you like it another way, the resistance a given substance has to a  force, in this case a projectile. The pedantic posturing here seems a bit hollow for anyone who is yet to cite anything concrete in terms of the jet theory

So let's talk about transferring kinetic energy then rather than absorbing force.  What is your point?

Bullet Kinetic Energy is transferred to the bullet as heat (deforming the bullet) and to the damage to the head.  Some of that kinetic energy is transferred into pressure energy (pressure x volume = energy) of the head contents just before the skull ruptures.  When the skull ruptures, the brain and blood gain kinetic energy when the pressure is released and a small amount of kinetic energy is given to the recoiling head. 

[Matt Grantham]

 Szamboti's 2012 response pretty much puts and end to Alvarez. Shall we go through the details of all of Alvarez's mistakes in using a melon instead of  human head.

 From Szamboti

By using
the words “if 10% of the incoming kinetic energy were used to propel 10% of the mass of the
melon forward” Dr. Alvarez shows that he simply assumed the values he needed to make the
equation work in the direction he wanted it to go. If he had proof of what he was saying he
would have provided it. Since he did testing, which he says validated his theory, he could
have simply weighed the melon beforehand and the remaining melon after the shooting tests,
to find the actual mass of the jet displaced from the melon. He doesn’t mention anything of
the sort

The shear forces generated by the bullet penetrating through
the much higher shear strength of the President’s skull would have precluded the appearance
of a jet effect induced motion in the assassination. This was actually demonstrated in testing
at the U.S. Army's Edgewood Arsenal. Ten human skulls, filled with the same tissue
replicating material as that used by the Army Wound Ballistics Research program, were shot
with 6.5 millimeter ammunition. All ten skulls went forward, in the direction of the bullet,
with none moving backward towards the shooter.

[Jim Brunsman]

Mr. Chapman tries to pontificate:
"The exita fired upward at a steep vertical angle according to the film and subsequent tests
From what I've read and recall, without revisiting that information at this moment, Kennedy's feet where jammed tightly under the jump seat in front of him to the extent that it was very difficult to get him out of the car. This indicates a powerful neurological reaction according to the article.

'For every reaction there is an equal and opposite reaction' goes Newton's third law of momentum. Kennedy's head moves about 2.5" forward at the moment of impact, which roughly equals the recoil of a Carcano I've seen online.

Mr. Chapman can barely form a sentence at the beginning and he forgets to include the extremely violent "back and to the left" motion seen on all the films. Extremely selective and extremely dishonest. The brilliant comments about the president's feet should be at the top of everyone's priority list!

Just one simple question: How do you explain the president's extremely violent head movement at frame 313? If someone says "jet effect" or "neuromuscular reaction" I will snicker and suggest that Newton's laws took a vacation for a couple of seconds...

[Jim Brunsman]

Great, another one who won't answer the question. Someone tell me how Oswald shooting from above and behind can produce the violent motion we see on the films? But you also need to account for the Parkland doctors eyewitness accounts, Clint Hill's testimony, and the incredible inside story of the autopsy. Sorry, but there is no possible way that your boy "Lee Hardly" could perpetrate such a horrific act.

[Jim Brunsman]

You still haven't addressed the question. I asked about the motion on the film, which is a question of physics you refuse to address. What does your intelligence tell you? If you are behind the stockade fence and you took a shot, wouldn't that match the physics of the action we see on film? Instead, we are supposed to believe YOUR lyin' eyes?

[Bill Chapman]

Mr. Chapman tries to pontificate:
"The exita fired upward at a steep vertical angle according to the film and subsequent tests
From what I've read and recall, without revisiting that information at this moment, Kennedy's feet where jammed tightly under the jump seat in front of him to the extent that it was very difficult to get him out of the car. This indicates a powerful neurological reaction according to the article.

'For every reaction there is an equal and opposite reaction' goes Newton's third law of momentum. Kennedy's head moves about 2.5" forward at the moment of impact, which roughly equals the recoil of a Carcano I've seen online.

Mr. Chapman can barely form a sentence at the beginning and he forgets to include the extremely violent "back and to the left" motion seen on all the films. Extremely selective and extremely dishonest. The brilliant comments about the president's feet should be at the top of everyone's priority list!

Just one simple question: How do you explain the president's extremely violent head movement at frame 313? If someone says "jet effect" or "neuromuscular reaction" I will snicker and suggest that Newton's laws took a vacation for a couple of seconds...

Are you accusing me of trying to mislead? Did the exita fire upwards at a forward angle or not? Jackie said 'top, behind the forehead' when asked about the wound location. That explains the exita firing upwards. And I suggest you keep your 'snickers' to the chocolate variety. You're missing the part where Kennedy's head snapped forward by 2.5", the same distance seen in the Carcano kick in the vid I posted.

[John Mytton]

Great, another one who won't answer the question. Someone tell me how Oswald shooting from above and behind can produce the violent motion we see on the films? But you also need to account for the Parkland doctors eyewitness accounts, Clint Hill's testimony, and the incredible inside story of the autopsy. Sorry, but there is no possible way that your boy "Lee Hardly" could perpetrate such a horrific act.

Someone tell me how Oswald shooting from above and behind can produce the violent motion we see on the films?

Kennedy's head is violently moved forward which obeys all your laws of physics.

But you also need to account for the Parkland doctors eyewitness accounts, Clint Hill's testimony, and the incredible inside story of the autopsy.

On one hand you've got Parkland eyewitnesses, Autopsy eyewitnesses, Dealey Plaza eyewitnesses, Films, X Rays and autopsy photos ALL showing the exact same damage to Kennedy and on the other all you have is some people most of which never even touched the President's blood soaked unwashed head. There's a reason why we have official 3+ hour autopsies and don't rely on the vague time restricted recollections of some Emergency staff.



As for Clint.

Sorry, but there is no possible way that your boy "Lee Hardly" could perpetrate such a horrific act.

Tell that to Officer Tippit.

JohnM

[Jim Brunsman]

That was an incredibly dishonest clip to post on a public forum. Why did you stop it so we can't see the entire assassination sequence? Is there any other reason other than to mislead? You have lost all credibility and I will not respond further...