Word: nf
(lookup in dictionary)
(lookup stats)
Dates: during 1920-1929
Sort By: most recent first
(reverse)
...form a closed circuit of communication, would flash time signals to one another. From the difference between the times flashed by stations in Heligoland and Hawaii, and the times simultaneously recorded in stations at Halifax and Seattle, the degrees of longitude between any two stations could nf be very accurately computed. Any slide of this continent would readily appear from further longitudinal determinations made 5, 10, 15 years afterward...