Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 558
e the floats are read- advantageously employed ; the velocity ily visible from the shore, a base or bases being determined from plotted positions of convenient length should be measured sD of floats b = — D = distance, t = time. as nearly as possible parallel to approxi- si mate direction of the… … a transit ashore ; the bearing of the base angles between it and the other station ; and its length measured as nearly as pos- these angles may be taken at equal inter- sible by a tightly stretched cod line being vals of time, or the time and angle be- taken as additional data. Should it be tween…
Engineering
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