4. Waterproof Frog / The Piano / In the Sub-Nuclear Kitchen / The Record

Waterproof Frog: A look at the unique frog Phyllomedusa which lives in the arid Gran Chaco region of central South America. The frog protects itself against water loss by coating its body with a waxy secretion. The Piano: A program about the history and science of the piano. In the Sub-Nuclear Kitchen: A brief look at particle physics and the huge particle accelerator at the European Organization for Nuclear Research (CERN) in Geneva. The Record: A history of the phonograph record