The sun-clock that sits in the engineering quadrangle was a gift from the Class of 1955 designed by two chemical engineering students, Ron Rosensweig and Hans Mueller. Hand-made almost entirely of brass, the sun-clock weighed thirty-five pounds and was manufactured for the price of $500 by the Rief Manufacturing Company in Fairfax, Ohio. Owing to the precision of its design and manufacture, the sun-clock’s hand chiseled analemma—the graduated scale shaped in a figure eight showing the sun’s declination and the equation of time for each day of the year—could tell time within one minute’s accuracy. In recent years college staff have referred to the entire instrument as simply the "analemma.”
Throughout its years on the quad, mishaps and thefts plagued the clock to the point that in 1968 all of the instrument’s moving parts disappeared. The sun-clock was irreparable because Rosensweig and Mueller, who designed the clock, had long since graduated and the college did not have any blueprints or any sketches to work from. Several employees in the UC Physical Plant worked together to consult with the original designers and secure funding to replace the sun-clock. Rosensweig, who had become president of Ferrofluidics Corporation in Burlington, Massachusetts, was quick to offer to redesign the sun-clock from square one in the absence of the original plans and sent a completed drawing for an estimate to Rief Manufacturing Company. Despite the considerable increase in cost to replace the original, the efforts of many persons culminated in success in July of 1970 when the new sun-clock was mounted on its pedestal with a plaque next to it reading, “There is Time for Those Who Pass.”
For over 50 years the analemma has remained a visible reminder of engineering and technology accomplishment and will continue to distinguish the College of Engineering and Applied Science at UC. As a lasting symbol of dedicated service and demonstrated ability the analemma was chosen by the dean of the college as a special recognition piece awarded to carefully chosen individuals who represent the epitome of engineering and technology excellence and service to the community, their chosen careers, the college of engineering and applied science and the university. Individuals awarded the analemma pin are, and will remain, loyal and trusted friends of the college and the dean’s inner circle of valued advisors and confidants.