Thirties Gallery

Lie detector test

Lie detector test. Pulse meters on a man'sfingers used for a lie detector, or polygraph, test. Under the subject's hands are the tracesproduced by the polygraph. A polygraph recordschanges in a number of physiological processes, asa series of questions are asked by an examiner. Aswell as measuring heart rate with these pulsemeters, blood pressure and respiration rate arealso measured. The examiner interprets the resultsto determine if the subject demonstrated deceptivebehaviour. The reliability of polygraphs iscontroversial and their evidence is not admissiblein court

© Tek Image/Science Photo Library

LCC-LFB firefighters change from brass to cork fire helmets LFB150

Two firemen in the foreground wearing new style cork helmets and Proto Mark IV breathing apparatus sets. The man on the right is from Station 34, Shadwell, whilst the man on the left is from Station 4, Chelsea. In the background are London firefighters still wearing the old style brass helmet. The new style cork helmet was gradually being phased in. Date: circa 1938

© London Fire Brigade / Mary Evans Picture Library

Lord Charles Cavendish and Adele Astaire on their wedding day, 1932 (b/w photo)

3474049 Lord Charles Cavendish and Adele Astaire on their wedding day, 1932 (b/w photo); Collection of the Duke of Devonshire, Chatsworth House, UK; (add.info.: Adele (1896-1981) Lady Charles Cavendish (born Adele Marie Austerlitz) American dancer, stage actress and singer. She was Fred Astaire's elder sister.
Lord Charles Arthur Francis Cavendish (1905-44) second son of Victor Cavendish, 9th Duke of Devonshire.); © Devonshire Collection, Chatsworth; Reproduced by permission of Chatsworth Settlement Trustees; out of copyright

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