Sylvan: Turns out that it was you who was arguing that KE has nothing to do with penetration. In his paper Ashby doesn't say that at all, but rather says it plays a very minor role when compared to the broadhead design.
BobCo19-65: I'd suggest you do some investigating before making accusations because you have it all wrong. Like I said before (and you may want to re-read), what I quoted was directly from a post on TradGang.com by Dr. Ashby late March 2005. I specifically stated that it was not from his paper. If you'd like to a link to the forum before commenting on it again, PM me and read it for yourself. For someone who claims to be as educated as you state you are, I wouldn't think it would be too hard to comprehend from my previous posts.
You posted a quote from Dr. Ashby claiming kinetic energy has absolutely nothing to do with penetration. You posted it! I said it was wrong and YOU jumped all over me defending it. YOU were defending the statement not Ashby. It doesn't matter where it came from that's begging the issue. I tried to reason with you and I even suggested that Ashby might have been exagerating to make a point but no you had your quote and it wasn't possible in your mind that it could be wrong. Well Ashby's published paper shows you were wrong to defend what absolutely was an exageration at least and yes idotic at worst. Without any thought process of your own you concluded I was wrong simply because I disagreed with your guru. Your idea of techical discussion seems to be quote and expert and ridicule anybody who might disagree with your expert but you offer no original thought of your own. That's sad.
BTW FWIW, When claiming to be correct over a known expert in the field who devoted large portions of life through extensive testing in the area, and making statements that his opinions are wrong or "idiotic" to me means that you must believe that you are more knowledgeable.
If an expert makes a claim that every other expert in the field is wrong (and that's what you quote did) then he must believe that he is more knowlegeble than the rest of the scientific community.
First of all, you have no idea how much of an expert I may be in this area. Secondly you couldn't even answer the question about what his degree is in so you don't even know how qualified he is to talk about physics. What if he is a Dr. of psychology? Thirdly
if God himself said that 2 + 2 = 5 he would be wrong! You know experts do get it wrong from time to time and you would clearly be better off doing some thinking for yourself rather than simply paroting what you "think" somebody else believs.