Equator 84 (World Geodetic System 1984) which is a standard for use in cartography, geodesy, and satellite navigation including GPS, also has an equatorial radius of 6,378.137 kilometres (3,963.191 mi). For both GRS 80 and WGS 84, this results in a length for the Equator of 40,075.0167 km (24,901.4609 mi). The geographical mile is defined as one arc-minute of the Equator, so it has different values depending on which radius is assumed. For example, by WSG-84, the distance is , while by IAU-2000, it is . This is a difference of less than over the total distance (approximately ). The earth
How Many Miles to Babylon? (novel) starring Daniel Day-Lewis as Alec and Christopher Fairbank as Jerry. In 2005 the actor and director Alan Stanford adapted the novel for stage and it was produced by Second Age Theatre Company and directed by David Parnell. The play has been performed several times subsequently. The book featured as the "Book at Bedtime" on BBC Radio 4 in April 2013. "In the Army :" How Many Miles to Babylon? (novel) How Many Miles to Babylon? is a novel by Irish writer Jennifer Johnston, first published in 1974. The novel explores the relationship of two men, an Anglo-Irish aristocrat, Alexander Moore,