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EACH year, at a place called Hill, visitors to Canada by the thousands park their cars at the bottom, place the gearshift in neutral, and sit in delighted astonish ment as they glide gradually but inexorably up the hill. The whole exercise is an optical illusion, of course. The cars only seem to be coasting uphill ; they are actually going down. The tourists know this, but they come anyway. It's not the feat that is the attraction; it's the illusion. The hue and cry that arose within Canada following the in troduction in 1969 of the government's White Paper on Foreign Policy bears some resemblance to the events at Magnetic Hill. The criticism was directed less at the paper's views of what Canada could and should do in the world than at the illusion
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Ivan L. Head (1972) studied this question.
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