Life in the 25th CenturyWe were delayed in starting for quite a while since I had to acquire a few crude ideas about the technique of using these belts. I had been sitting down, for instance, with the belt strapped about me, enjoying an ease similar to that of a comfortable armchair; when I stood up with a natural exertion of muscular effort, I shot ten feet into the air, with a wild instinctive thrashing of arms and legs that amused Wilma greatly.
But after some practice, I began to get the trick of gauging muscular effort to a minimum of vertical and a maximum of horizontal. The correct form, I found, was in a measure comparable to that of skating. I found, also, that in forest work particularly the arms and hands could be used to great advantage in swinging along from branch to branch,
