VARIATIONS FOUND IN STEEL RULES, TYPES OF SCALES FOUND ON THEM & THEIR PROPER USAGE, & PROCEDURE FOR TRANSFERRING MEASUREMENTS BY MEANS OF CALIPERS & DIVIDERS.

Demonstrates how to use an indexing fixture for production milling operations, space cutters on an arbor for straddle milling and mill parallel bosses on connecting rods.

Develops an understanding of borrowing and place value in subtraction and relative values of coins in our monetary system. Billy uses subtraction to decide whether he will have enough money to get a baseball after he buys some paints and a bat. B/W 1948Educational film for young children about arithmetic.01:26:45:00 B/W 1948ms Little boy standing [...]

A look at how automation helps the process of making engines at a Ford plant in Brookpark, Ohio.

Shows four vital elements in connection with teeth -how teeth develop and grow, foods which help build strong teeth, how to brush teeth and how the dentist cares for our teeth.

SHOWS IMPORTANCE OF SULFUR IN OUR DAILY LIVES, SKETCHING ITS HISTORY & USES. DEMONSTRATES PHYSICAL & CHEMICAL PROPERTIES OF SULFUR & ITS COMPOUNDS. Has excellent gas station / service station, gas station attendant opens hood of car, puts gas in tank,

Shows how Joan and Jerry observe the plants and animals on a farm during one summer. Color 1947Educational film for young children, about life on the farm and theanimals and plants of the surrounding countryside. Follows alittle boy and girl, Joan and Jerry, as they play and explore. Nofootage of farm animals (the farm seems [...]

Explains basic principles of airplane flight by illustrating the application of physical laws to forces acting on airfoils. Demonstrates the functions of the rudder, elevator and ailerons, and illustrates the actions of a plane when pitching, rolling and yawing.

Uses real-life photography to portray three Aesop fables, the Fox and the Grapes, the Fox and the Crow and the Fox and the Stork