Discusses the properties and reactions of alkaline earth metals: calcium, barium, and strontium. It describes experiments demonstrating their reactions with
Hardest Working Dollar, The 1971 Describes what the Unemployment Insurance Program means to the American worker, employer, government and the economy. Help us get more films like this online! This film was digitized and uploaded by the A/V Geeks thanks to contributions to this project: http://www.avgeeks.com/wp2/avgeeks100miles hardest-working-dollar-the-1971
Scenes showing the manufacture and a brief description of how the Allison jet engine performs. We digitized and uploaded this film from the Prelinger Archive. Email us at footage@avgeeks.com if you have questions about the footage and are interested in using it in your project. harnessed-lightning-1950