 Greenwich Time and Longitude
Derek Howse
This classic official history of Greenwich Time and the discovery of
longitude - revised, updated and with new colour illustrations - has been
republished in preparation for the Millennium. It tells the story of
Greenwich Time from 1676, when it was first established for use at the
newly created Royal Observatory at Greenwich, to the present day, when it
has become the basis of timekeeping the world over.
Derek Howse describes, in simple terms, the relevant developments in
astronomy, navigation and timekeeping from the 1670s to the present day -
with the atomic clock, Global Positioning System and leap second - and how
Greenwich Time has been found, kept and distributed. |
