Depicting the adventures that can be had in a creatively structured museum, this dialogue-free guide to San Francisco's Exploratorium illustrates well the myriad of devices that it contains. Some exhibits are more interactive than others, some emit weird noises but most offer the visitor an opportunity to see the practical application of science in an easy to appreciate fashion. Light, vibration, acoustics, electrical currents and even elementary visual technologies all feature amongst the attractions. Some clearly have more practical functions than others, but what director Jon Boorstin succee...