Photostory #275: International Aspects Stressed: Canada's Achievements in 1960
Photographers, , , ,
National Film Board of Canada
December 27, 1960
Canadian Museum of Contemporary Photography fonds, National Gallery of Canada Library and Archives
Dr. K. M. Baird of the National Research Council was prominent in compiling evidence for adoption of a new world standard of length. The International Bureau of Weights and Measures defines this as a specific number of wavelengths of orange light emitted by krypton gas.