{"id":"ufo5c99","internal_id":"af4c9186-ea99-42e0-a5a9-7b691933d8bd","links":{"img_thumbnail":"https://digital.sciencehistory.org/downloads/deriv/qv9sd9l/thumb_large_2X?disposition=inline","html_self":"https://digital.sciencehistory.org/works/ufo5c99"},"title":"Liquid Air-Low Temperatures","additional_title":[],"format":["moving_image"],"genre":["Video Recordings"],"medium":["VHS"],"extent":["32M 35S"],"language":["English"],"provenance":"","subject":["Low temperature","Liquid air","Gases--Liquefaction","Educational films"],"department":"Archives","series_arrangement":[],"rights":"http://rightsstatements.org/vocab/InC-RUU/1.0/","rights_holder":"","digitization_funder":"","file_creator":"Myers, Emmett","description":"“Liquid Air-Low Temperatures” is one of fifty-three short educational films originally produced in 1955 for KQED San Francisco as part of the series Tempest in a Test Tube. This series of half-hour episodes illustrates basic chemistry concepts for high school students through live experiments and demonstrations by presenter Dr. Harry Sello. The experiments used in the show were designed by the American Chemical Society’s California chapter and reflect the safety standards of the time. This episode, “Liquid Air-Low Temperatures,” teaches viewers how air can be liquefied, and shows how extremely low temperatures can freeze materials, change their properties, and cause rapid expansion.","description_html":"<p>“Liquid Air-Low Temperatures” is one of fifty-three short educational films originally produced in 1955 for KQED San Francisco as part of the series Tempest in a Test Tube. This series of half-hour episodes illustrates basic chemistry concepts for high school students through live experiments and demonstrations by presenter Dr. Harry Sello. The experiments used in the show were designed by the American Chemical Society’s California chapter and reflect the safety standards of the time. This episode, “Liquid Air-Low Temperatures,” teaches viewers how air can be liquefied, and shows how extremely low temperatures can freeze materials, change their properties, and cause rapid expansion.</p>","published_at":"2026-05-04T14:56:13Z","updated_at":"2026-05-04T14:56:13Z","creator":[{"category":"creator_of_work","value":"American Chemical Society"},{"category":"creator_of_work","value":"KQED-TV (Television station : San Francisco, Calif.)"}],"date_of_work":[{"start":"1987","start_qualifier":"circa","finish":"","finish_qualifier":"","note":"","formatted":"Circa 1987"}],"place":[{"category":"place_of_creation","value":"California--San Francisco"}],"inscription":[],"related_link":[],"additional_credit":[],"physical_container":null}