A U.S. Army 1st Signal Brigade soldier operates a machine at the Regional Communications Center in Phu Lam, Vietnam during the Vietnam War. The soldier operates an autodin ASC-2 simulator. He monitors the circuit for distortion. He presses some buttons of the simulator. A dial on the machine. Wires plugged in into different switches. A screen.
U.S. Army 1st Signal Brigade soldier operates a machine at the Regional Communications Center in Phu Lam, Vietnam during the Vietnam War. A soldier sends tape through the computer 2020. The tape in process. He puts the tape in the machine. He rolls the tape in his hand. He pushes buttons of the 360 system. The soldiers places the tape in the machine. The tape being processed. Soldier receives message cards at the IBM 2520 machine. He picks up the card and reads it.
U.S. Army 1st Signal Brigade in Vietnam during the Vietnam War. Defense Communications System (DCS) transmitter station building. American flag and Vietnamese flag flying from staffs. U.S. 1st Signal Brigade sign on the main building. The soldiers walk past the building. Close up of the 1st Signal Brigade sign. Traffic on street.
The geophysical activities at the Atmospheric Ionization Laboratory in Cambridge, Massachusetts. People walk into the Atmospheric Ionization Laboratory. A sign reads ' Atmospheric Ionization Laboratory'. A woman writes on a blackboard. A man stands near a large wall map of the world and points out the locations. A radar antenna. A man with a special camera and he is seated on a platform. A man works with radar antenna. Another man writes data on the blackboard. which is received from radar stations.
The geophysical activities at the Atmospheric Ionization Laboratory in Cambridge, Massachusetts. A man seated behind desk take notes from charts and papers to compile statistics on atmospheric occurrences. Two military personnel carry weather balloon out of a building. A USAF (United States Air Force) personnel takes weather data. Two teletype machines. A man enters and tears teletype message from the machine and walks out. A woman prepares perforated cards or punch cards. She feeds the punch cards into a large punch card computer sorting machine.
The geophysical activities at the Atmospheric Ionization Laboratory in Cambridge, Massachusetts. The men operate research equipment. A man operates telegraph recorder. A man and a woman study an instrument designed to check the small fluctuations in atmospheric pressure. A woman writes the speed of the air on a paper. A water table and a man operates it. Another man measures amplitude signal. A man studies a graph used to record earth motion for scientific study. A man puts the graph in a wooden box and is attached with parachute. A radio carrier signal.
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