Oxygen

Titles. 04:42:39 Man in laboratory w/ bottles w/ mice in bottom and fed different amounts of oxygen. Almost dead brought back to life. Candle put into sealed jar, dies down until more oxygen added. 04:43:49 Overly simple drawing of earth. 04:44:01 Liquid air (oxygen and nitrogen mixture) poured, then warmed up and nitrate boils off leaving liquid oxygen. 04:44:52 Rubber ball hit after extreme cooling, shatters. Frozen mercury at low temperature used as hammer. Decomposing water to produce hydrogen and oxygen. Heating test tube of mecuric oxide for mercury and oxygen. 04:47:07 Salts broken down in test tube at different rates over same temperatures. Catalyst effect shown. 04:49:08 Acid & base created. Soaking cotton in liquid air & lighted, burning. 04:50:45 Burning gun powder; dust explosion over candle flame to blow off can lid. The End. Chemical Laboratory; Experiments; Science Lecture; Elements; Litmus Test; Boredom; Boring; 1947 Educational Films; 1940s;