In the 1970s Dr Nick Laslowicz studied the effects of playground roundabouts on the learning curve of four-year-old children. Larger and more powerful machines had to be constructed to study the effect on adults. “The early tests were a catastrophe. When we reached 6 g everything broke down. We lost our academic status.” But Dr Laslowicz and his partner found a way to continue, and developed the craziest rides to overcome that error of Nature, gravity. Archive photographs provide proof. A tongue-in-cheek film designed like a – too short! – TV documentary, about the abstruse extent of science. Even the viewer loses all sense of proportion.