Word: signal
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Dates: during 1880-1889
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...McAdie of the signal service, lectured before the Natural History Society last week, on Atmospheric Electricity, giving the result of experiments recently conducted in the Jefferson Physical Laboratory...
...course of experiments is being conducted at the Jefferson Physical Laboratory in connection with the signal service. A large kite has been used to determine the comparative state of electricity in the lower statum of atmosphere, and among the clouds...
...signal for a recall will be a succession of short whistles, but there will be no recall after the first ten strokes have been rowed...
...soon as the crews have passed through the draw, a long whistle will be sounded from the referee's tug as the signal for the crews to get into line. A rope will be stretched across the river, to which four row boats will be moored at a distance of one hundred feet apart. A man in each boat will hold the stern of a shell. As soon as the shells are in line, two whistles will be sounded as a signal for the men to come out to the full reach...
...referee will say, "Gentlemen, are you ready? " and getting no reply, and seeing no coxswain hold up his hand as a signal that his crew is not ready, the referee will fire a shot gun, after an interval of from two to four seconds, as a signal...