books.google.com - Thomas Hankins and Robert Silverman investigate an array of instruments from the seventeenth through the nineteenth century that seem at first to be marginal to science--magnetic clocks that were said to operate by the movements of sunflower seeds, magic lanterns, ocular harpsichords (machines that played...http://books.google.com/books/about/Instruments_the_Imagination.html?id=O9e_7E22caAC&utm_source=gb-gplus-shareInstruments & the Imagination
