Resumen:

Walking Zero: Discovering Cosmic Space and Time Along the Prime Meridian : In Walking Zero, Chet Raymo uses the prime meridian - the line of zero longitude and the standard for all the world's maps and clocks - to reconstruct the story of humankind's intellectual journey from a cosmos not much larger than ourselves to the universe of the galaxies and geologic eons. NOTE: This is a Scratch and Dent version and accordingly MAY NOT have a dust jacket.