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[i]During the descent, Kittinger experienced temperatures as low as -94 °F (-70 °C). In the free-fall stage he reached a top speed that is variously estimated as 214 to 250 meters per second; in later interviews, Kittinger put his top speed at 714 mph (319 m/s). As the speed of sound is lower in the upper atmosphere than at ground level, this means he was traveling at transonic, and perhaps supersonic, speeds. Despite this, Kittinger said he had no sensation of speed until he approached the cloud deck.[/i]
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