“With his marine clocks, John Harrison tested the waters of space-time. He succeeded, against all odds, in using the fourth—temporal—dimension to link… — Dava Sobel Copy Share Image
“In the wake of the Longitude Act, the concept of “discovering the longitude” became a synonym for attempting the impossible.” — Dava Sobel Copy Share Image
“The zero-degree parallel of latitude is fixed by the laws of nature, while the zero-degree meridian of longitude shifts like the sands… — Dava Sobel Copy Share Image
“The British Parliament, in its famed Longitude Act of 1714, set the highest bounty of all, naming a prize equal to a… — Dava Sobel Copy Share Image
“Having established itself securely on shipboard, the chronometer was soon taken for granted, like any other essential thing, and the whole question… — Dava Sobel Copy Share Image
“One degree of longitude equals four minutes of time the world over, but in terms of distance, one degree shrinks from sixty-eight… — Dava Sobel Copy Share Image