ATMOSPHERIC PRESSURE
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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 catalog 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
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
Sources
- Educational Film Guide 1946 — title, year, creator, length, format, description, catalog record
Record added 2026-07-02 14:19:58