Imagine sitting on a sled the size of a bath mat while wearing head-to-toe spandex. Your eyes lock on the long, curvy track of ice that lies straight ahead. You grip the metal handle on either side of you just a bit tighter. Your heart thumps as you envision a series of grisly crashes. But eventually you push off the handles, lie back and succumb to the forces of physics.rnWithin seconds you hit 50mph and flop around like a rag doll through each sharp bend. A straightaway turns out to be a deceptive jaunt thatrnyou bump with both sides ofrnyour body, but the battering goesrnbarely noticed because of the hugerncurve visible beyond. It slingshots the sledrnfarther down the track.
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