Calorimeter - Reaction calorimeters. 1  A reaction calorimeter is a calorimeter in which a chemical reaction is initiated within a closed insulated container. 2  The cooling/heating jacket controls either the temperature of the process or the temperature of the jacket. 3  The cooling/heating jacket controls the temperature of the process.
Command Sgt. Maj. Sheryl D. Lyon is the command sergeant major of U.S. Army Europe.
To his left is Friedrich Paulus, a staff officer recently given command of Sixth Army. Below: A German armored column traverses Russia's wide open spaces, pushing toward Stalingrad. Below: Sixth Army Commander General Friedrich Paulus (right) watches his troops approach the city.