Overview:A scientist brings solar energy equipment to address the needs of a small Egyptian village; an ingenious solution to the possible loss of blades during a storm from a giant windmill in Denmark; German architect Frei Otto discusses his designs of lightweight buildings; Arthur Riggs and Keiichi Itakura discuss gene alteration; firefighter Captain Fred Bruno discusses a chemical additive which allows more water to pass through small-diameter firehoses; adjustments made by a vigilant Japanese potter's assistant; the adaptations of the desert camel; a scientist from the Norwegian Polar Research Institute describes the adaptations of polar bears to freezing temperatures; swimmer Diana Nyad discusses how the human body reacts to swimming in cold water; Dr. Rolf Sorbye discusses his creation of a motorized prosthesis for a ten-year-old Swedish girl born without a lower arm; an experimental computer system installed in cars in Tokyo, giving motorists directions from a central system.