The writer of this background of mankind’s more and more profitable makes an attempt to appreciate, to degree and to map the Earth’s gravity box (commonly referred to as ‘little g’ or simply ‘g’) has been following within the footsteps of the pioneers, intermittently and with numerous ambitions, for greater than fifty years. it's a tale that starts with Galileo’s early experiments with pendulums and falling our bodies, progresses during the conflicts among Hooke and Newton and culminates within the measurements which are now being made up of airplane and satellites. The marvelous raises in accuracy which have been completed in this interval give you the context, however the major concentration is at the humans, lots of whom have been awesome eccentrics. additionally coated are the explanations WHY those humans inspiration their measurements will be valuable, with emphasis within the later chapters at the position of ‘g’ in today’s utilized geology, and at the ways that it truly is offering new and unbelievable visions of our planet. it's also, partially, a private memoir that explores the parallels among the way in which fieldwork is being performed now and the problems that followed its execution some time past. chosen subject matters within the arithmetic of ‘g’ are mentioned in a sequence of brief Codas.