Collection search - Helium : [incomplete]
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Record information – Brief 
Helium : [incomplete]
Hierarchical level:Item (Accession level)Date:1923 ?Item number (ISN):325273Type of material:Moving imagesFound in:Archives / Film, Video and Sound -
Record information – Details Fonds/collection:GRAPHIC CONSULTANTS LTD.Accession:1972-0105Media:FilmPart:6 of 7Production date:1923 ?Production company:FilmcraftSponsor:Ontario Motion Picture BureauDescription:Film describing the technique used by Professor J.C. McLennan and G.M. Shrum to liquify helium. Machinery used to achieve this are shown including a standard two stage Whitehead Air Compressor. Animated line drawings and titles offer a step by step explanation of the procedure: the helium's temperature is lowered by using liquid air and liquid hydrogen; eventually, liquid helium at a temperature of -272.1 degrees celsius is collected. An animation shows a "Thermometer of Important Relative Temperatures", highlighting the highest and lowest temperatures attained on earth. Within .9 degrees of absolute zero, liquid helium enables scientists to test and prove the Kinetic Theory of heat. <40mn>Language:Silent with English intertitlesOriginal number:3212~3213~3214~3215~3216~3217Notes:Detailed holdings information: -
Ordering and viewing options Conditions of access:OpenConsultation copy number:V1 2001-10-0023
Restrictions on consultation:~No Restrictions / Pas de restrictionsDonor restrictions:The permission of Library and Archives Canada is required to reproduce this title.Copyright status:Copyright expired.Reproduction access:with written permission of copyright owner : with permission of Library and Archives CanadaYou can order materials in advance to be ready for you when you visit. You will need a user card to do this.
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