Well, in 1954, to test what pilots could endure after ejecting at high speeds, Air Force physician John Stapp shot to 623 miles per hour in five seconds on a rocket sled, and slammed to a stop just one second later.

好吧，在 1954 年，为了测试飞行员在高速弹射后的耐力，空军医生约翰·斯塔普在火箭雪橇上在 5 秒钟内达到每小时 623 英里，一秒钟后猛地停下来。