01842ngm a2200373 450000100060000000300090000600500170001500700150003200800410004704000280008804100080011624501020012424600270022626000560025330000380030930600110034749000130035850000440037150600540041551100290046952004440049852100110094253801680095354600160112158800650113765000210120265000220122365000240124565000380126965000160130770000280132371000380135185600790138922099CA-CURIO20190903201914.0cr*cna|||uuuuu190903s2011||||onc004|||||||as|||v|eng|d aCA-CURIObengcCA-CURIO aeng00aImaginary numbers at use in the real worldh[videorecording] /cCanadian Broadcasting Corporation2 aThe unbelievable truth aToronto :bCanadian Broadcasting Corporation,c2011 a1 streaming video (04 min 33 sec) a0004330 aThe Code aFrom the Curio.ca channel: BBC Channel.1 aAccess restricted to Curio.ca channel subscribers1 aHost: Du Sautoy, Marcus. aStarting
with the logical roots of arithmetic with negative numbers, Marcus du Sautoy
explains how mathematicians created imaginary numbers by ‘imagining’ the square
root of -1. Though imaginary in nature, he then explores how this abstract
mathematical idea has become vital to air traffic control systems. Teacher notes: Use as an enrichment and extension clip during a series of lessons on
negative numbers or powers and roots.1 a15-17. aAvailable on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://curio.ca/en/video/imaginary-numbers-at-use-in-the-real-world-22099/ aIn English.0 aSource of description from Canadian Broadcasting Corporation00aNumbers, Complex00aNumbers, Negative00aAir traffic control00aRadar air traffic control systems00aMathematics1 aDu Sautoy, Marcusehost2 aCanadian Broadcasting Corporation40uhttp://curio.ca/en/video/imaginary-numbers-at-use-in-the-real-world-22099/