GOING UNDERGROUND: The Science and History of Falling through the Earth

This book follows the historical trail by which humanity has determined the shape and internal structure of the Earth. It is a story that bears on aspects of the history of science, the history of philosophy and the history of mathematics. At the heart of the narrative is the important philosophical practice of performing thought experiments — that is, the art of considering an idealized experiment in the mind. This powerful technique has been used by all the great historical practitioners ...