2018-11-122018-11-121957-02-21https://hdl.handle.net/2152.3/10663Daily Log dated February 21, 1957 describing research processes and activities for the ROFEI.Dr. William ThorntonresearchROFEIRadar Optic Firing Error IndicatorDaily LogSpace MedicineROFEI_PreNASA_DailyLog_02.21.57