b'A jump with the exact proportions of the launch ramp for snowboarding\\u2019s big air event, which will make its Olympic debut in Pyeongchang, does not exist in nature. It must be built. And so, fewer than a dozen times a year, at venues ranging from ballparks to parking lots, impeccably orchestrated teams of engineers, ice suppliers, snowmakers, crane operators, up riggers, down riggers, scaffold designers\\u2014you get the picture\\u2014do exactly that.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'