Show IRE REALLY ALLY QUIET QUIE have you ever heard your heart beat well you can in the new parmly sound laboratory latest addition to the illinois institute of technology donated by the parmly foundation for auditory research the lab is an 18 by 20 fo foot ot room with 24 inch fiberglass spikes lining the four walls to absorb abdor b sound modeled after a similar simil r chamber at harvard the room rests on rubber pads supported by concrete piers the whole ol of which weighs approximately approximate li 40 tons |