This book covers two centuries when amateur scientistsnatural philosophersbegan to use close observation and orderly experimentation to understand processes that had previously been explained by religion or superstition. By 1700, a new faith had emerged: a trust in the potential of human reason. This thrilling narrative is supported by photographs and illustrations, timelines and sidebars, and a host of other features that make exploration of this era accessible, entertaining, and unforgettable.