In April 1950 Dr. Carl O. Lange, a University of Kentucky physicist, shown with one of his barographs, that he made for glider pilots. The instrument is designed to measure altitude at a given time and was also attached to research balloons to study the upper atmosphere. When the balloon bursts the instrument was parachuted to earth recording the altitude and time it reached and remained at a given altitude. Dr. Lange made them in his laboratory on Richmond road and sold them for $200 each to the U.S. Weather Bureau, Army, Navy, Air Force and various universities for research projects. Herald-Leader Archive Photo