This Month in History: 1964 World's Fair

Visitors to the Ford Motor Company's Wonder Rotunda at the 1964 New York World's Fair, which opened on April 22, 1964, were kept in air-conditioned comfort thanks to York. Two York EK-93 Absorption Units, with 750 tons of refrigeration capacity each, were used to air condition the Rotunda, which was seven stories high and nearly the length of three football fields.