Using a low - gravity simulator ( actually , a giant elasticated harness ) , dr carr found that the rigidity of spacesuits means that they act as springs ? assisting the act of running 卡尔教授利用一个低引力模型（一个巨大的有强性的绳套）发现宇航服的僵硬使得它们作用如弹簧?有助于奔跑。
When i returned to my basement office i was told by one of the long time employees that shortly before the building was completed one of the roofers had taken a fatal fall from the exact spot i was standing when his left ankle was caught in a coiled rope 当我回到我的地下工作室后，一个已经在那工作了很长时间的员工告诉我，就在这栋楼完工不久前，有一个负责盖屋顶的工人就站在我当时站的那个地方，因为左脚踝被卷绳套住，从楼下摔下来死掉了。
