ATMOSPHERIC PRESSURE

Duration: 15 min

Year Published: 1923

Creator: Encyclopaedia Britannica Films Inc

Format: 16mm

Description: Unbalanced air pressure; operation of the vacuum cleaner, effect of atmospheric pressure upon a vacuum; Magdeburg hemisphere demonstration; operation of a common lift pump; pressure variations in a valley and on a mountain top; causes of land and sea breezes.

Complete Record: Dewey number: 533 Audience level: jh-sh-c Guide Format/cost: 16-sl-$24 Distributors / rental: Brandon Films, Inc sale apply; General Films, Ltd $1.50; DeVry Films and Laboratories $1.50; Visual Education Service, Inc $1.50

Metadata Source:Educational Film Guide 1946