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"To train the astronauts, he set up a makeshift facility seven miles away from Lusaka, where the trainees, dressed in drab overalls with British army helmets, would then take turns to climb into a 44 gallon oil drum which would be rolled down a hill bouncing over rough ground; this, according to Nkoloso, would train the men in the feeling of weightlessness in both space travel and re-entry." Wow.