I didnt say it wasnt useful. But there is a difference in being helpful and informative and just trying to show other people how smart you are which is precisely what the Physics professor was doing. Im not saying that is what is happening now as the thread has progressed, but the generator of the thread asked a simple question that can be answered in a practical way, simply put, so that anyone can understand, and it was done effectively, although perhaps without making a technically accurate and perfect statement. Sometimes you can get the desired outcome without laying out complicated theories and gory details that overcomplicate things and cloud the simple answer. Whats the old saying?.... "there is more than 1 way to skin a cat"

The 1st couple of posters simply tried to state the answer in simple laymans terms and they got blasted for it. I blasted him for blasting them and MY comment got deleted! lol I think its funny since all of this is just discussion anyway. Im sure the Major is a fine fella, I didnt do anything to him I wouldnt do to a real life Buddy that got all high and mighty and a little to big for his britches....

It is an interesting topic but it goes WAY beyond helping the original poster. I dunno, he may find the thread interesting though,,, not to mention its a free country with a nice 1st amendment to the Constitution.[8D]