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[quote user="Phoebe Vet"] I know your explanation seems to make sense to you, but it is just not supported by my training and experience. Test your theory.  Put a ripe peach on a T-ball stand and hit it as hard as you can with a baseball bat.  See if you get splashed or if all the contents are accelerated along with the peach. I have no desire to engage in a protracted argument, so this is my last post on the subject. [/quote] I realize that you have training and experience, and I appreciate your input on this matter, but I disagree with you on this one point. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> You say the every vehicular crash leaves debris deposited at the point of impact  (as opposed to the accident scene in general.)  All I am saying is that I believe that is somewhat of a generalization, rather than a guaranteed consequence of every collision.  Certainly it has to depend on the size, shape, and weight of the vehicles involved and other factors such as speed and the loads they are carrying.   <o:p></o:p> And again, we are not just talking about leaving debris at the “crash site,” or “accident scene,” which is highly likely.  We are talking about leaving debris right at the point of impact.  And we are talking about reaching a conclusion that the point of impact could not have possibly occurred at a location that was fifteen feet away from the nearest debris.    <o:p></o:p> Your analogy of hitting a peach is similar to your example of the semi trailer.  The peach is relatively dense with little structural strength to withstand the acceleration.  The concentrated force of the bat cuts right through it before it can accelerate.  The peach explodes.  An egg would explode as well. <o:p></o:p> Now try the same test with a baseball.  How much debris is left at the point of impact? <o:p></o:p> Now go back to the peach, but instead of hitting it with a bat, hit it with something shaped like a big spoon the size of a tennis racquet.  Will part of the peach drop straight down to the ground at the point of impact?    <o:p></o:p> Now go back to the peach and hit it dead center with a locomotive at 60 mph.  Every bit of that exploding peach will be carried forward before it can get beyond the face of the locomotive and drop to the ground.  So even though the peach explodes as it does when hit by the bat, no debris will be left at the point of impact when the peach is hit by a locomotive.   <o:p></o:p> Consider a bicyclist getting hit dead center by a locomotive traveling 60 mph.  I doubt that will leave anything at the point of contact.  There are plenty of videos on youtube showing trains hitting cars in tests and demonstrations.  Most of them look a lot more like baseballs getting hit by bats than peaches getting hit by bats.
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