1941 - Educational Film, USA: Weather, The

The Weather Encyclopaedia Britannica Montage: Pasture w/ sheep. Farmers setting out smog pots at night in orchards. Woman hanging out washing on clothes line. Family picnic beside car. Airplane pilot checking teletype, charts etc. 04:51:20 Man cranking machine that turns thermometer thru air; a second thermometer has wet cloth over it & both are recorded. Man recording inches of mercury in vacuum. Various other recording devices record wind, temperature etc. 04:52:38 Man releasing balloon & follows to give direction & elevation. Automatic signaling device, radiosond, raised by balloon from rooftop & man at receiver. Animated diagram showing air currents from radiation energy. Graph w/ animation showing formation of rain. 04:54:38 Animation of earth & effect of radiant energy of sun showing reason that equator is heated to higher temperature & movement of air circulation towards the poles & effects. 04:56:01 Map of north America showing three influences of weather: polar; tropical warmth & movement of air across the country east & west w/ interactions from north & south. Diagram of cold front formation & movement of cold & warm fronts. 04:58:24 Countryside w/ trees blowing & cumulus clouds; replaced by cirrus clouds. Weather vane showing shifting wind; altostratus clouds. Printout showing increase wind velocity. CU rain on muddy puddles. Graphs of changing weather. 04:59:38 Humid air & accompanying clouds, changing to thunderstorm clouds. Clouds moving off. The End. Educational Films; Science; Meteorology; Weather Forecasting; Lecture Films; 1940s; NOTE: One continuous minute sold at per reel rate. NOTE: FOR ORDERING See: www.footagefarm.co.uk or contact us at: Info@Footagefarm.co.uk