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1 .This is Scientific American 60-Second Science. I'm Wayt Gibbs. Got a minute?
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2 .(sound)
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3 .Probably every race car driver today played with Hot Wheels cars as a kid,
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4 .and imagined what it would be like to go so fast that you could drive around the wall of a race track without rolling over.
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5 .Turns out that's not as impossible as it sounds.
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6 .Some physics students at the University of Leicester in the U.K.worked out the math.
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7 .Four factors are crucial in keeping a car up on a vertical curve: friction between the tires and the track; the weight of the vehicle; its speed;
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8 .and how hard the car presses into the road, which depends on its aerodynamics.
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9 .The work appears in the Journal of Physics Special Topics.
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10 .An Indy race car hugs the road at high speeds.
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11 .And on a circular track as long as the one in Indianapolis,
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12 .it would have more than enough sticking power to cling to a vertical wall at 150 miles an hour.
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13 .But do not try this yourself.
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14 .Most consumer sports cars don't press down when they go really fast, they lift up…up and away.
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15 .Thanks for the minute, for Scientific American 60-Second Science. I'm Wayt Gibbs.
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