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MAKING RUNWAYS OUT OF ICE

Arctic engineers make their own icebergs to use as runways. It takes 26 inches of manmade ice to support a ...

Arctic engineers make their own icebergs to use as runways. It takes 26 inches of manmade ice to support a Caterpillar grader, 5 feet to support a 737 jet. Homemade ice forms faster and harder when the water is sprayed rather than flooded, but if the stream is aimed too high, the water falls as snow. — John Urquhart, staff reporter, The Wall Street Journal quoting Larry Sagriff, ice engineer, Panarctic Oils Ltd., of Calgary

12/27/16