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Updated: May 7, 2025
The ocean steamer ran the surest line of triangulation into the future, because it was the nearest of man's products to a unity; railroads taught less because they seemed already finished except for mere increase in number; explosives taught most, but needed a tribe of chemists, physicists, and mathematicians to explain; the dynamo taught least because it had barely reached infancy, and, if its progress was to be constant at the rate of the last ten years, it would result in infinite costless energy within a generation.
Thereupon Gus produced a long board, held up one end and rested the other on a stake, while Bill went to work with a six-foot rule, a straight edge and a draughtsman's degree scale. Bill elucidated: "Now, then, to get out of figuring, which is always hard to understand, we'll just lay the triangulation out by scale, which is easily understood. One-eighth of an inch equals one foot.
The distance between the eyes forms a base line for optical triangulation. June 1. To-day we have an exciting ride. The river rolls down the canyon at a wonderful rate, and, with no rocks in the way, we make almost railroad speed.
This group, which is composed of the Winthrop, Sedgwick, Preble, Bear, and Cleveland lakes, being all connected one with another by water communications between them, was carefully surveyed by triangulating them and coursing their shores with the chain and compass, except those parts which were so straight as to render the work sufficiently accurate by sketching those portions between consecutive points of triangulation of no great distance apart.
By triangulation Lord Longlegs determined its altitude; Herr Spider measured its circumference at the base and computed the circumference at its top by a mathematical demonstration based upon the warrant furnished by the uniform degree of its taper upward.
In the central office was a chronograph which registered each discharge in succession. The distances from each cannon muzzle had been obtained by triangulation. In the calm, still night, Commodore Wilkes and Professor Farmer stood in the cupola of the State House with the chronograph, holding their watches, and noting the successive flashes. The experiments were not very satisfactory. Mr.
Then by constructing a parallel upon the similarity or the difference of the lines about the other two openings, we get what a surveyor would call our "lines of triangulation," and by following these to their converging point can often arrive at a fairly accurate localization.
Then we might be able to use these data, work out a triangulation problem, and get a fairly accurate measurement of speed, altitude, and size. Radar, of course, will give an accurate measurement of speed and altitude, I pointed out, but radar is not infallible. There is always the problem of weather.
The height at which the aerial craft is flying being known, a little triangulation upon the part of the observer at the firing point enables him to calculate the range and to have the guns laid accordingly.
You can get any man's or woman's secret, whose sphere is circumscribed by your own, if you will only look patiently on them long enough. Nature is always applying her reagents to character, if you will take the pains to watch her. Our studies of character, to change the image, are very much like the surveyor's triangulation of a geographical province.
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