Complex sentence: Hadden succeeds in decoding the pages; he explains that the drawings are meant to be interpreted in three dimensions, which reveals a complex machine allowing for one human occupant inside a pod to be dropped into three rapidly spinning rings.
Split into simpler sentences: Hadden succeeds in decoding the pages; he explains that the drawings are meant to be interpreted in three dimensions. This reveals a complex machine allowing for one human occupant inside a pod to be dropped into three rapidly spinning rings.