 This series entry presents a variety of feature stories. The first shows a new use for cotton. When cotton is placed between two layers of asphalt when a roadbed is laid out, the resulting road lasts 3 to 5 years longer than one without the cotton layer. Several kitchen gadgets are demonstrated, including a gearless eggbeater. Inventor  Russell E. Oakes  (qv) makes gadgets that tap unused human energy. Here he demonstrates a device that attaches to a person s jaw. When a person chews gum, the jaw s motion powers a fan that cools the person s head. In London, England, the Royal Free Hospital and Medical School trains only women to be doctors. A factory on Long Island, New York, produces frozen dinners for airlines and the modern consumer at home. On the campus of the University of California at Los Angeles, an early computer, the "differential analyzer" is put to use on various problems in physics and other sciences. It is a true  mechanical brain , built with rotating rods that analyze the data and plot the results on paper. The final story shows the Northrop flying wing at work.