September 1, 1945
M.I.T.'s Radiation Laboratory operated in deep secrecy in Cambridge, Mass., for five years while developing some of the major types of wartime radar.
But sleek radomes on the roofs of M.I.T. buildings were primarily to protect experimental antennas against weather rather than against espionage.
Between radomes on Building 24 near Massachusetts Ave. may be seen part of Boston's skyline
RADIATION LABORATORY, CAMBRIDGE, MASSACHUSETTS.