Grand Central’s Restoration

Grand Central’s Restoration

For more than three generations, the vast, marble concourse of New York City’s Grand Central Termi­nal has been a cross­roads for commuters, travelers, and sightse­ers. But the mechanical systems that heat, ventilate, and air condition the railroad station-while...
A Silent Performance at Carnegie Hall

A Silent Performance at Carnegie Hall

A client insisted that the new air conditioning system for the acoustically and visually splendid hall be noiseless and invisible. The engineers complied. Almost a century after its original opening, Carne­gie Hall has made a stunning second debut. Ever since...