Iowa State University; Agricultural and Biosystems Engineering Dept.; Oscilloscopes; Recording instruments; Electric apparatus and appliances
Bill Waters, agricultural engineering senior, learns electronic principles in the laboratory. An oscilloscope, and recording and indicating instruments, are used to show the characteristics of the circuits.
Iowa State University; Agricultural and Biosystems Engineering Dept.; Refrigeration and refrigerated machinery
John Hermnson, agricultural engineering senior, takes notes on a refrigeration experiment. Instruments record temperatures and electrical information, which will be used in the engineering report.
Iowa State University; Agricultural and Biosystems Engineering Dept.; Sprinkler irrigation; Hydrants
Professor Howard Johnson (in tie) discusses the design and operations of sprinkler irrigation equipment with agricultural engineering students in lab class.
Iowa State University; Agricultural and Biosystems Engineering Dept.; Terracing; Soil conservation
One man is driving a tractor while others look on in the distance. The Agricultural Engineering students are learning how to layout, build and check terraces on farm land for erosion control.
Iowa State University; Agricultural and Biosystems Engineering Dept.; Tractors
Professor Mervine and several other individuals work on different types of tractors including; a New Hart Parr tractor, a Rock Island Plow Heider tractor and an Avery Company tractor.
Iowa State University; Agricultural and Biosystems Engineering Dept.; Drainage; Trenches; Engineering models
Agricultural engineers Kent Mitchell (left) and Gerald Hollander work out the relationship between the depth of trench and height if target on a tile drainage model.
Iowa State University; Agricultural and Biosystems Engineering Dept.; Combines (Agricultural machinery); Farmers; Crops; Harvesting; Agricultural wastes
Shown from the right rear, a self-propelled combine takes down crops in Washington County, Iowa, while simultaneously harvesting the grain in a cloud of dust.