The beginning of the long dash : a history of timekeeping in Canada /
Malcolm M. Thomson.
- [First edition].
- xvii, 190 pages, 24 unnumbered leaves of plates : illustrations ; 24 cm
Includes bibliographical references (pages 179-183) and index.
The origin of astronomical timekeeping -- Integrating the time services -- The rise of the Dominion Observatory -- The evolution of astronomical techniques -- From pendulums to masers : clocks of the Time Service -- Radio time signals.
0802053831 9780802053831
78317580
770015905 can
(AMICUS)000000016984
Time--Systems and standards--Canada. Time--Systems and standards. Time--Systems and standards.