Science: Chlorine for Cars

For three uninterrupted hours, the little blue Chevrolet Vega cruised steadily around the Michigan International Speedway southwest of Detroit at a constant 50 m.p.h. That performance fell far short of setting any endurance or speed records. But when the car finally pulled into the pits, the joy at trackside was unconfined. Toasts were drunk and the engineer who had prepared the Vega for its run was doused with beer. The small knot of men had every reason to celebrate. Their little car had just traveled some 150 miles at a respectable highway speed, although under its hood there was nothing more...

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