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James Lighthill
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<p>Sir Michael James Lighthill <a href="/facts/Fellow_of_the_Royal_Society/cWs8TdC5">FRS</a> <a href="/facts/Fellow_of_the_Royal_Aeronautical_Society/fGzBa2Q0">FRAeS</a> (23 January 1924 – 17 July 1998) was a British <a href="/facts/Applied_mathematics/qyqklXXm">applied mathematician</a>, known for his pioneering work in the field of <a href="/facts/Aeroacoustics/FJN943nB">aeroacoustics</a> and for writing the <a href="/facts/Lighthill_report/n5PcLQE1">Lighthill report</a> in 1973, which pessimistically stated that "In no part of the field (of AI) have the discoveries made so far produced the major impact that was then promised", contributing to the gloomy climate of <a href="/facts/AI_winter/DLpU1wxl">AI winter</a>. </p>