Very sad to hear that Dr. Ron Eshleman passed a few days ago. I met Dr. Esheleman a number of times through the VI annual meetings. I found him to be very congenial and supportive in explaining difficult vibration topics. I am sure a number of members on this forum has met him as he served as President and Director of the Vibration Institute for over 35 years. He was a true leader in our field. He will be missed
Jim P