151. Dimpling and Countersinking (20:56)

Date:
1947
Main contributors:
Jam Handy Organization, Division of Visual Aids, United States Office of Education, Federal Security Agency
Summary:
Shows how dimpling and countersinking prepare metal for flush riveting, how to operate a dimpling machine, and how to countersink work for flush rivets.

152. The dolphin kick (08:16)

Date:
1956
Main contributors:
Jorhal Pictures, Francis Dixon
Summary:
Slow-motion and underwater photography are used in demonstrating how swimming students emulate the motins of the dolphin as they learn the dolphin kick, the accompanying body undulations and the butterfly arm action which combine to increase the power of the breast stroke. Educational author, Francis Dixon.

153. Hopi horizons (20:42)

Date:
1946
Main contributors:
Mary L. De Give, Margaret Cussler, Social Documentary Films
Summary:
Shows the Hopi Indian as a farmer, herder, craftsman, and trader. Pictures how difficult it is for him to live on the desert, especially with some of the government controls. Gives the Indian a chance to speak about his problems in education, place in American society, and means of making a living.

154. Determining molecular formulas (12:45)

Date:
1961
Main contributors:
Max J. Rosenberg, Ellis Katzman, Elbert C. Weaver, John A. Skarulis, William H. Pasfield, Herman J. Engel, Robert Braverman, Ross Lowell, Geraldine Lerner, Peter Robinson
Summary:
Records an experiment in which the molecular weight of a compound is determined through knowledge of the percentage composition by weight of the compound and application of Avogadro's Law. Animation is employed to show the differences in characteristics of two substances of identical composition through reference to the substances' molecular structure.

155. Driving economically (17:47)

Date:
1952
Main contributors:
National Commission on Safety Education, National Education Association
Summary:
Economical driving practices are suggested by a service station operator to a boy who has just received permission to drive the family car alone. Includes care of the car's finish, warming up of the engine, proper use of clutch, efficient braking practices, and the effect of acceleration and speed on tire wear and gasoline consumption.

156. 1968 Little 500 (26:39)

Date:
1968
Main contributors:
Robert Appelman
Summary:
A short film about the 1968 Little 500.

157. A glimpse of the past : prehistoric American Indians (09:34)

Date:
1951
Main contributors:
Roland J. Faust, Robert L. Gobrecht , Hugh N. Davis, Jr. , John Taylor, Harvey Frye, Indiana University Audio-Visual Center , Maxine Dunfee, Glenn A. Black
Summary:
Presents phases of prehistoric Native American life as revealed by archaeologists who study the features of early village sites and materials obtained from exploring them. Describes the structure of the Native American homes, their weapons, tools, toys, ornaments, and food. Filmed at Angel Mound Site near Evansville, Indiana.

159. Children Who Draw Pictures (37:48)

Date:
1959
Main contributors:
See Other Contributors
Summary:
Through free expression art activities, a teacher shows how children think, feel, and develop in a year at a Japanese school. Selects pupils from a first-grade class and traces their personality growth and development as it relates to their home life and social-school environment. Indicates that personal problems and predispositions influence the types and variety of children's artistic creations. Illustrates how children can be encouraged to remove deeply rooted fears through art activity and social participation.