Download or read book Zero Degrees written by Charles W. J. Withers and published by Harvard University Press. This book was released on 2017-03-13 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charles Withers explains how the choice of Greenwich to mark 0° longitude solved problems of global measurement that had engaged geographers, astronomers, and mariners since ancient times. This history is a testament to the power of maps, the challenges of global measurement, and the role of scientific authority in creating the modern world.